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  • Server Systems for SQL Server 2012 per core licensing

    - by jchang
    Until recently, the SQL Server Enterprise Edition per processor (socket) licensing model resulted in only 2 or 3 server system configurations being the preferred choice. Determine the number of sockets: 2, 4 or 8. Then select the processor with the most compute capability at that socket count level. Finally, fill the DIMM sockets with the largest capacity ECC memory module at reasonable cost per GB. Currently this is the 16GB DIMM with a price of $365 on the Dell website, and $240 from Crucial. The...(read more)

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  • wifi problems with lenovo g580 on kubuntu-13.04-desktop-amd64

    - by user203963
    i have a wifi connection problem in lenovo g580 on kubuntu-13.04-desktop-amd64. ethernet cable is working properly but wifi does'nt connect below are some hardware information sudo lshw -class network gives *-network description: Ethernet interface product: AR8162 Fast Ethernet vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:01:00.0 logical name: eth0 version: 10 serial: 20:89:84:3d:e9:10 size: 100Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm pciexpress msi msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=alx driverversion=1.2.3 duplex=full firmware=N/A ip=192.168.0.106 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resources: irq:16 memory:90500000-9053ffff ioport:2000(size=128) *-network description: Network controller product: BCM4313 802.11b/g/n Wireless LAN Controller vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:02:00.0 version: 01 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=bcma-pci-bridge latency=0 resources: irq:17 memory:90400000-90403fff *-network description: Wireless interface physical id: 3 logical name: wlan0 serial: 68:94:23:fa:2c:d9 capabilities: ethernet physical wireless configuration: broadcast=yes driver=brcmsmac driverversion=3.8.0-19-generic firmware=N/A link=no multicast=yes wireless=IEEE 802.11bgn lsubs gives Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 0489:e032 Foxconn / Hon Hai Bus 002 Device 003: ID 04f2:b2e2 Chicony Electronics Co., Ltd lspci gives 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4) 00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4) 00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04) 01:00.0 Ethernet controller: Qualcomm Atheros AR8162 Fast Ethernet (rev 10) 02:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01) Does anyone knows the solution? rfkill list all gives 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: phy0: Wireless LAN Soft blocked: yes Hard blocked: no 2: ideapad_wlan: Wireless LAN Soft blocked: yes Hard blocked: no 3: ideapad_bluetooth: Bluetooth Soft blocked: no Hard blocked: no

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  • The HTG Guide to Hiding Your Data in a TrueCrypt Hidden Volume

    - by Jason Fitzpatrick
    Last week we showed you how to set up a simple, but strongly encrypted, TrueCrypt volume to help you protect your sensitive data. This week we’re digging in deeper and showing you how to hide your encrypted data within your encrypted data. The HTG Guide to Hiding Your Data in a TrueCrypt Hidden Volume Make Your Own Windows 8 Start Button with Zero Memory Usage Reader Request: How To Repair Blurry Photos

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  • Agile PLM 9.3 Service Pack 2 (SP2 or 9.3.0.2) is released along with AUT 1.6.2.0 and AutoVue 20 for

    - by Shane Goodwin
    Oracle released Agile PLM 9.3 SP2 on June 14 and the Agile installer for AutoVue 20 for Agile PLM on April 30. Also available are the new versions of AUT and Averify - 1.6.3 for both tools. 9.3 SP2 is a combined English and NLS release for use on any version of 9.3.0. SP2 contains many bug fixes and rolls up several Hot Fixes - please review the Readme for all the details. In addition, this release also addresses some scalability issues when working with very large Exports and Reports. When exporting very large BOMs, the export module will now release objects more efficiently to reduce the amount of memory consumed on the Application Server. Adminstrators can also control the maximum row limits for Users verses system processes, like ACS. Several out of the box BOM reports have also been changed to use a new row limit option. The combination of all these changes will provide more stability on the application server for customers managing very large datasets. 9.3 SP2 also adds support for Oracle Database 11gR2 for Windows, Oracle Internet Directory (OID) and Oracle Access Manager (OAM). Please note that currently the Variant Patch is not intended to be released for SP2. Customers running the Variant Patch should remain on 9.3.0.0 or 9.3.0.1. Back in April, we also released the AutoVue 20 for Agile PLM installer. AutoVue 20 has many new features which will help Agile PLM customers. Large multi-page Word documents and 2D CAD documents will open more quickly to the first page or first rendition. Memory usage is less when working with 3D Models. There are many new formats supported for MCAD, 2D Cad, and EDA. AutoVue 20 is immediately available for Windows and Linux platforms. The new software can be found in Edelivery or Metalink / Oracle Support: - AutoVue 20 for Agile PLM is on E-Delivery with part number B58963-01 - Oracle Agile PLM 9.3 Service Pack 2 (9.3.0.2) My Oracle Support Patch ID 9782736 - AVERIFY 1.6.3 My Oracle Support Patch ID 9791892 - AUT 1.6.3 My Oracle Support Patch ID 9791908 - Agile PLM 9.3 SP2 Documentation is available on the OTN Agile Documentation Page

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  • How to create wifihotspot in ubuntu 10.04 LTS

    - by aspdeepak
    I am using ubuntu 10.04 LTS in my lenovo laptop and have a android ICS device. I want to create a wifi-hotspot in ubuntu, which I can later use for connecting android device. I need this setup for capturing the packets from android device and later analysing them using wireshark in my ubuntu. I tried to create a new hotspot using "Create a new wireless Network" wizard from network manager applet, but for some reason the following happens. It breaks the existing internet connection(either the WLAN, or ethernet) Its not visible in the list of available WIFI hotspots in the android device. My Chipset information 00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07) 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:03.0 Communication controller: Intel Corporation Mobile 4 Series Chipset MEI Controller (rev 07) 00:19.0 Ethernet controller: Intel Corporation 82567LF Gigabit Network Connection (rev 03) 00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03) 00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03) 00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03) 00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03) 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03) 00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03) 00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 (rev 03) 00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 03) 00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03) 00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03) 00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03) 00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93) 00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03) 00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03) 00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03) 03:00.0 Network controller: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection 15:00.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev ba) 15:00.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 04) 15:00.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 21) 15:00.3 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev ff) 15:00.4 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 11) 15:00.5 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 11) Supported interface modes: * IBSS * managed * monitor

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  • Tuxedo Load Balancing

    - by Todd Little
    A question I often receive is how does Tuxedo perform load balancing.  This is often asked by customers that see an imbalance in the number of requests handled by servers offering a specific service. First of all let me say that Tuxedo really does load or request optimization instead of load balancing.  What I mean by that is that Tuxedo doesn't attempt to ensure that all servers offering a specific service get the same number of requests, but instead attempts to ensure that requests are processed in the least amount of time.   Simple round robin "load balancing" can be employed to ensure that all servers for a particular service are given the same number of requests.  But the question I ask is, "to what benefit"?  Instead Tuxedo scans the queues (which may or may not correspond to servers based upon SSSQ - Single Server Single Queue or MSSQ - Multiple Server Single Queue) to determine on which queue a request should be placed.  The scan is always performed in the same order and during the scan if a queue is empty the request is immediately placed on that queue and request routing is done.  However, should all the queues be busy, meaning that requests are currently being processed, Tuxedo chooses the queue with the least amount of "work" queued to it where work is the sum of all the requests queued weighted by their "load" value as defined in the UBBCONFIG file.  What this means is that under light loads, only the first few queues (servers) process all the requests as an empty queue is often found before reaching the end of the scan.  Thus the first few servers in the queue handle most of the requests.  While this sounds non-optimal, in fact it capitalizes on the underlying operating systems and hardware behavior to produce the best possible performance.  Round Robin scheduling would spread the requests across all the available servers and thus require all of them to be in memory, and likely not share much in the way of hardware or memory caches.  Tuxedo's system maximizes the various caches and thus optimizes overall performance.  Hopefully this makes sense and now explains why you may see a few servers handling most of the requests.  Under heavy load, meaning enough load to keep all servers that can handle a request busy, you should see a relatively equal number of requests processed.  Next post I'll try and cover how this applies to servers in a clustered (MP) environment because the load balancing there is a little more complicated. Regards,Todd LittleOracle Tuxedo Chief Architect

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  • Advantages and disadvantages of building a single page web application

    - by ryanzec
    I'm nearing the end of a prototyping/proof of concept phase for a side project I'm working on, and trying to decide on some larger scale application design decisions. The app is a project management system tailored more towards the agile development process. One of the decisions I need to make is whether or not to go with a traditional multi-page application or a single page application. Currently my prototype is a traditional multi-page setup, however I have been looking at backbone.js to clean up and apply some structure to my Javascript (jQuery) code. It seems like while backbone.js can be used in multi-page applications, it shines more with single page applications. I am trying to come up with a list of advantages and disadvantages of using a single page application design approach. So far I have: Advantages All data has to be available via some sort of API - this is a big advantage for my use case as I want to have an API to my application anyway. Right now about 60-70% of my calls to get/update data are done through a REST API. Doing a single page application will allow me to better test my REST API since the application itself will use it. It also means that as the application grows, the API itself will grow since that is what the application uses; no need to maintain the API as an add-on to the application. More responsive application - since all data loaded after the initial page is kept to a minimum and transmitted in a compact format (like JSON), data requests should generally be faster, and the server will do slightly less processing. Disadvantages Duplication of code - for example, model code. I am going to have to create models both on the server side (PHP in this case) and the client side in Javascript. Business logic in Javascript - I can't give any concrete examples on why this would be bad but it just doesn't feel right to me having business logic in Javascript that anyone can read. Javascript memory leaks - since the page never reloads, Javascript memory leaks can happen, and I would not even know where to begin to debug them. There are also other things that are kind of double edged swords. For example, with single page applications, the data processed for each request can be a lot less since the application will be asking for the minimum data it needs for the particular request, however it also means that there could be a lot more small request to the server. I'm not sure if that is a good or bad thing. What are some of the advantages and disadvantages of single page web applications that I should keep in mind when deciding which way I should go for my project?

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  • Wireless acting weird ubuntu 12.04 LTS

    - by Philip Yeldhos
    I'm kinda new here, so please bear with me. My wireless driver is acting very weird. It shows my router's name, but when it is connecting (after entering the correct password), the icon on the tray is like, refreshing every once in a second, while showing the animation that it is connecting. And after a few seconds, error message come up saying that wireless network is disconnected. I installed the drive through "additional drivers". What info do you need? Somebody please help. philip@philip-HP-Mini-110-3100:~$ sudo iwconfig lo no wireless extensions. eth1 IEEE 802.11 ESSID:"" Mode:Managed Frequency:2.472 GHz Access Point: Not-Associated Bit Rate:72 Mb/s Tx-Power:24 dBm Retry min limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=5/5 Signal level=0 dBm Noise level=-96 dBm Rx invalid nwid:0 Rx invalid crypt:11 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 eth0 no wireless extensions. here's what lspci -v gave me: 02:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01) Subsystem: Hewlett-Packard Company Device 1483 Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at 52000000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Capabilities: [58] Vendor Specific Information: Len=78 <?> Capabilities: [48] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [d0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [13c] Virtual Channel Capabilities: [160] Device Serial Number 00-00-82-ff-ff-3f-e0-2a Capabilities: [16c] Power Budgeting <?> Kernel driver in use: wl Kernel modules: wl, bcma, brcmsmac okay, i removed the driver additional drivers gave me. now, this is what has happened: lsmod gave me: philip@philip-HP-Mini-110-3100:~$ lsmod | grep brc brcmsmac 540875 0 mac80211 436455 1 brcmsmac brcmutil 14675 1 brcmsmac cfg80211 178679 2 brcmsmac,mac80211 crc8 12781 1 brcmsmac cordic 12487 1 brcmsmac and iwconfig gave me: philip@philip-HP-Mini-110-3100:~$ iwconfig lo no wireless extensions. wlan0 IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=19 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off eth0 no wireless extensions. and lspci -v gave me: 02:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01) Subsystem: Hewlett-Packard Company Device 1483 Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at 52000000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: brcmsmac Kernel modules: bcma, brcmsmac

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  • AdventureWorks 2014 Sample Databases Are Now Available

    - by aspiringgeek
      Where in the World is AdventureWorks? Recently, SQL Community feedback from twitter prompted me to look in vain for SQL Server 2014 versions of the AdventureWorks sample databases we’ve all grown to know & love. I searched Codeplex, then used the bing & even the google in an effort to locate them, yet all I could find were samples on different sites highlighting specific technologies, an incomplete collection inconsistent with the experience we users had learned to expect.  I began pinging internally & learned that an update to AdventureWorks wasn’t even on the road map.  Fortunately, SQL Marketing manager Luis Daniel Soto Maldonado (t) lent a sympathetic ear & got the update ball rolling; his direct report Darmodi Komo recently announced the release of the shiny new sample databases for OLTP, DW, Tabular, and Multidimensional models to supplement the extant In-Memory OLTP sample DB.  What Success Looks Like In my correspondence with the team, here’s how I defined success: 1. Sample AdventureWorks DBs hosted on Codeplex showcasing SQL Server 2014’s latest-&-greatest features, including:  In-Memory OLTP (aka Hekaton) Clustered Columnstore Online Operations Resource Governor IO 2. Where it makes sense to do so, consolidate the DBs (e.g., showcasing Columnstore likely involves a separate DW DB) 3. Documentation to support experimenting with these features As Microsoft Senior SDE Bonnie Feinberg (b) stated, “I think it would be great to see an AdventureWorks for SQL 2014.  It would be super helpful for third-party book authors and trainers.  It also provides a common way to share examples in blog posts and forum discussions, for example.”  Exactly.  We’ve established a rich & robust tradition of sample databases on Codeplex.  This is what our community & our customers expect.  The prompt response achieves what we all aim to do, i.e., manifests the Service Design Engineering mantra of “delighting the customer”.  Kudos to Luis’s team in SQL Server Marketing & Kevin Liu’s team in SQL Server Engineering for doing so. Download AdventureWorks 2014 Download your copies of SQL Server 2014 AdventureWorks sample databases here.

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  • Generic log analyzer that produces reports

    - by Eugene
    About 600 customers use our application. We have very detailed logs for everything that happens in the application, from changes in the data model, memory and CPU/GPU usage to clicks on the UI elements. We want to be able to parse the logs coming from these customers and analyze them to understand how users use our application and what happens internally in the application. Is there a log analyzer that can produce such reports automatically?

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  • How do I get wireless working on a Dell Inspiron 510m?

    - by user17449
    Why WiFi don't work in my Dell Inspiron 510m with Ubuntu 10.04? Is that usefull? inspiron@Inspiron:~$ rfkill list all inspiron@Inspiron:~$ sudo lshw -C network [sudo] password for inspiron: *-network:0 DISABLED description: Wireless interface product: PRO/Wireless LAN 2100 3B Mini PCI Adapter vendor: Intel Corporation physical id: 3 bus info: pci@0000:01:03.0 logical name: eth1 version: 04 serial: 00:0c:f1:5b:5d:40 width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=ipw2100 driverversion=git-1.2.2 firmware=712.0.3:3:00000001 latency=32 link=no maxlatency=34 mingnt=2 multicast=yes wireless=unassociated resources: irq:5 memory:fcffe000-fcffefff *-network:1 description: Ethernet interface product: 82801DB PRO/100 VE (MOB) Ethernet Controller vendor: Intel Corporation physical id: 8 bus info: pci@0000:01:08.0 logical name: eth0 version: 81 serial: 00:11:43:41:d8:b8 size: 10MB/s capacity: 100MB/s width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=e100 driverversion=3.5.24-k2-NAPI duplex=half firmware=N/A ip=192.168.0.2 latency=32 link=no maxlatency=56 mingnt=8 multicast=yes port=MII speed=10MB/s resources: irq:11 memory:fcffd000-fcffdfff ioport:ecc0(size=64) inspiron@Inspiron:~$ iwconfig wlan0 wlan0 No such device inspiron@Inspiron:~$ ifconfig -a eth0 Link encap:Ethernet Endereço de HW 00:11:43:41:d8:b8 inet end.: 192.168.0.2 Bcast:192.168.0.255 Masc:255.255.255.0 UP BROADCAST MULTICAST MTU:1500 Métrica:1 pacotes RX:0 erros:0 descartados:0 excesso:0 quadro:0 Pacotes TX:0 erros:0 descartados:0 excesso:0 portadora:0 colisões:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) eth1 Link encap:Ethernet Endereço de HW 00:0c:f1:5b:5d:40 BROADCAST MULTICAST MTU:1500 Métrica:1 pacotes RX:0 erros:0 descartados:0 excesso:0 quadro:0 Pacotes TX:0 erros:0 descartados:0 excesso:0 portadora:0 colisões:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) IRQ:5 Endereço de E/S:0xe000 Memória:fcffe000-fcffefff lo Link encap:Loopback Local inet end.: 127.0.0.1 Masc:255.0.0.0 endereço inet6: ::1/128 Escopo:Máquina UP LOOPBACK RUNNING MTU:16436 Métrica:1 pacotes RX:628 erros:0 descartados:0 excesso:0 quadro:0 Pacotes TX:628 erros:0 descartados:0 excesso:0 portadora:0 colisões:0 txqueuelen:0 RX bytes:50104 (50.1 KB) TX bytes:50104 (50.1 KB) inspiron@Inspiron:~$ nm-tool NetworkManager Tool State: connected - Device: eth1 ----------------------------------------------------------------- Type: 802.11 WiFi Driver: ipw2100 State: unavailable Default: no HW Address: 00:0C:F1:5B:5D:40 Capabilities: Wireless Properties WEP Encryption: yes WPA Encryption: yes WPA2 Encryption: yes Wireless Access Points - Device: eth0 ----------------------------------------------------------------- Type: Wired Driver: e100 State: unmanaged Default: no HW Address: 00:11:43:41:D8:B8 Capabilities: Carrier Detect: yes Speed: 10 Mb/s Wired Properties Carrier: off inspiron@Inspiron:~$

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  • My 24HOP session

    - by NeilHambly
    Hello So was very exicited to have my 24HOP session on SQL Sever 2012 Memory Unfortunately I had the Demo gods decided that I should be paid a few visits.. and caused me to drop my connections for 10-15 minutes (several reboots later) I have attached the PPT slide (PDF) for those who want it I had to rush through the demo's as I lost 10-15 minutes and will redo this session as a camtasia recording to give this session again in one contigous recording The demo scripts will also be made available...(read more)

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  • 25 Secrets for Faster ASP.NET: the Eagle has landed!

    - by Michaela Murray
    On Friday we launched our new free eBook, 25 Secrets for Faster ASP.NET Applications! Heading for 1000 of you have picked it up already, but if you haven’t got your copy yet, you can grab it from http://www.red-gate.com/25secrets. It’s the follow up to the wildly successful 50 Ways to Avoid, Find and Fix ASP.NET Performance Issues, which we released back in January this year (you can download from www.red-gate.com/50ways). Once again, we collected tips from some of the smartest brains in the ASP.NET community, but this time around, we’ve covered the latest stuff in the .NET framework – async/await, Web API, and more. Houston, we have a winner… In my original blogpost, I offered a Microsoft Surface as a prize for the best tip. Now, after some serious deliberation, our judges have settled on a winner. By a unanimous verdict, the prize goes to… (wait for it!) … Jeffrey Richter, for this cheeky number, Tip #1 in the new book: Want to build scalable websites and services? Work asynchronously One of the secrets to producing scalable websites and services is to perform all your I/O operations asynchronously to avoid blocking threads. When your thread issues a synchronous I/O request, the Windows kernel blocks the thread. This causes the thread pool to create a new thread, which allocates a lot of memory and wastes precious CPU time. Calling xxxAsync method and using C#’s async/await keywords allows your thread to return to the thread pool so it can be used for other things. This reduces the resource consumption of your app, allowing it to use more memory and improving response time to your clients. Congratulations Jeffrey! Of course, I also owe a massive thank you to everyone who’s been involved in the book, especially all the authors. It’s a real treat to work with a developer community that’s so keen to collaborate and to share their hard-won nuggets of performance knowhow. If you haven’t read it yet, I can’t recommend it highly enough. You can get it for free at www.red-gate.com/25secrets The full backstory for both eBooks: https://www.simple-talk.com/blogs/2012/11/15/application-performance-the-best-of-the-web/ https://www.simple-talk.com/blogs/2012/11/27/application-performance-episode-2-announcing-the-judges/ https://www.simple-talk.com/blogs/2013/01/25/free-ebook-50-ways-to-avoid-find-and-fix-asp-net-performance-issues/ https://www.simple-talk.com/blogs/2013/03/22/50-ways-to-avoid-find-and-fix-asp-net-performance-issues-the-next-generation/

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  • Troubleshooting Nonpaged and Paged Pool Errors in Windows

    Ben Lye uncovered a memory leak in the nonpaged pool which was crashing his servers with disquieting regularity. Luckily it was relatively easy to troubleshoot, and he's sharing the tools and techniques he used to get his servers back on track in double-quick time....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • The Fast Guide to Application Profiling

    In this sample chapter from his recently released book (co-Authored with Paul Glavich) Chris Farrell gives us a fast overview of performance profiling, memory profiling, profiling tools, and in fact everything we need to know when it comes to profiling our applications. This is a great first step, and The Complete Guide to .NET Performance Testing and Optimization is crammed with even more indispensable knowledge.

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  • SQL SERVER Configure Management Data Collection in Quick Steps T-SQL Tuesday #005

    This article was written as a response to T-SQL Tuesday #005 Reporting.The three most important components of any computer and server are the CPU, Memory, and Hard disk specification. This post talks about how to get more details about these three most important components using the Management Data Collection. Management Data Collection generates the [...]...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • How does process priority influence a process

    - by Luis Alvarado - The Wolverine
    Assuming we have read the following question: Change niceness (priority) of a running process and we know about root, non-root permissions: What actually happens when a running process (Through renice) or a new process (Through nice) gets its priority changed to a positive/negative value it previously had. Does it mean more memory is assign to it? Does more CPU power go to that particular process? Does it reduce any timing for resources for that process? What happens when the process priority change?

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  • Display Resolution all wrong iin 12.04.1 running in VBox

    - by André Alçada Padez
    I have a Ubuntu 12.04.1 (64bits) system, running perfectly alongside Windows 7. I needed to create a Virtual Machine in VBox running the same 12.04.1 (64bits). I have a 15 inch notebook w/ NVidia Graphics, display running at 1920*1080 on the host system. installed the Guest Additions and restarted the VM Configured the VM for 128 MB (max) of memory for the graphics I can only configure the 4:3 display resolutions: 1280*960 / 1023*768 / 800*600 What can i do to be able to have 16/10 1920*1080?

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  • SQL Server v.Next (Denali) : Another SSMS bug that should be fixed

    - by AaronBertrand
    Sorry to call this out in a separate post (I talked about a bunch of SSMS Connect items the other day), but Aaron Nelson ( blog | twitter ) jogged my memory today about an issue that has gone unfixed for years: the custom coloring for Registered Servers is neither consistent nor global. For one of my servers, I've chosen a red color to show in the status bar. Let's pretend this is a production server, and I want the red to remind me to use caution. I can set this up by right-clicking a Registered...(read more)

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  • The Sensemaking Spectrum for Business Analytics: Translating from Data to Business Through Analysis

    - by Joe Lamantia
    One of the most compelling outcomes of our strategic research efforts over the past several years is a growing vocabulary that articulates our cumulative understanding of the deep structure of the domains of discovery and business analytics. Modes are one example of the deep structure we’ve found.  After looking at discovery activities across a very wide range of industries, question types, business needs, and problem solving approaches, we've identified distinct and recurring kinds of sensemaking activity, independent of context.  We label these activities Modes: Explore, compare, and comprehend are three of the nine recognizable modes.  Modes describe *how* people go about realizing insights.  (Read more about the programmatic research and formal academic grounding and discussion of the modes here: https://www.researchgate.net/publication/235971352_A_Taxonomy_of_Enterprise_Search_and_Discovery) By analogy to languages, modes are the 'verbs' of discovery activity.  When applied to the practical questions of product strategy and development, the modes of discovery allow one to identify what kinds of analytical activity a product, platform, or solution needs to support across a spread of usage scenarios, and then make concrete and well-informed decisions about every aspect of the solution, from high-level capabilities, to which specific types of information visualizations better enable these scenarios for the types of data users will analyze. The modes are a powerful generative tool for product making, but if you've spent time with young children, or had a really bad hangover (or both at the same time...), you understand the difficult of communicating using only verbs.  So I'm happy to share that we've found traction on another facet of the deep structure of discovery and business analytics.  Continuing the language analogy, we've identified some of the ‘nouns’ in the language of discovery: specifically, the consistently recurring aspects of a business that people are looking for insight into.  We call these discovery Subjects, since they identify *what* people focus on during discovery efforts, rather than *how* they go about discovery as with the Modes. Defining the collection of Subjects people repeatedly focus on allows us to understand and articulate sense making needs and activity in more specific, consistent, and complete fashion.  In combination with the Modes, we can use Subjects to concretely identify and define scenarios that describe people’s analytical needs and goals.  For example, a scenario such as ‘Explore [a Mode] the attrition rates [a Measure, one type of Subject] of our largest customers [Entities, another type of Subject] clearly captures the nature of the activity — exploration of trends vs. deep analysis of underlying factors — and the central focus — attrition rates for customers above a certain set of size criteria — from which follow many of the specifics needed to address this scenario in terms of data, analytical tools, and methods. We can also use Subjects to translate effectively between the different perspectives that shape discovery efforts, reducing ambiguity and increasing impact on both sides the perspective divide.  For example, from the language of business, which often motivates analytical work by asking questions in business terms, to the perspective of analysis.  The question posed to a Data Scientist or analyst may be something like “Why are sales of our new kinds of potato chips to our largest customers fluctuating unexpectedly this year?” or “Where can innovate, by expanding our product portfolio to meet unmet needs?”.  Analysts translate questions and beliefs like these into one or more empirical discovery efforts that more formally and granularly indicate the plan, methods, tools, and desired outcomes of analysis.  From the perspective of analysis this second question might become, “Which customer needs of type ‘A', identified and measured in terms of ‘B’, that are not directly or indirectly addressed by any of our current products, offer 'X' potential for ‘Y' positive return on the investment ‘Z' required to launch a new offering, in time frame ‘W’?  And how do these compare to each other?”.  Translation also happens from the perspective of analysis to the perspective of data; in terms of availability, quality, completeness, format, volume, etc. By implication, we are proposing that most working organizations — small and large, for profit and non-profit, domestic and international, and in the majority of industries — can be described for analytical purposes using this collection of Subjects.  This is a bold claim, but simplified articulation of complexity is one of the primary goals of sensemaking frameworks such as this one.  (And, yes, this is in fact a framework for making sense of sensemaking as a category of activity - but we’re not considering the recursive aspects of this exercise at the moment.) Compellingly, we can place the collection of subjects on a single continuum — we call it the Sensemaking Spectrum — that simply and coherently illustrates some of the most important relationships between the different types of Subjects, and also illuminates several of the fundamental dynamics shaping business analytics as a domain.  As a corollary, the Sensemaking Spectrum also suggests innovation opportunities for products and services related to business analytics. The first illustration below shows Subjects arrayed along the Sensemaking Spectrum; the second illustration presents examples of each kind of Subject.  Subjects appear in colors ranging from blue to reddish-orange, reflecting their place along the Spectrum, which indicates whether a Subject addresses more the viewpoint of systems and data (Data centric and blue), or people (User centric and orange).  This axis is shown explicitly above the Spectrum.  Annotations suggest how Subjects align with the three significant perspectives of Data, Analysis, and Business that shape business analytics activity.  This rendering makes explicit the translation and bridging function of Analysts as a role, and analysis as an activity. Subjects are best understood as fuzzy categories [http://georgelakoff.files.wordpress.com/2011/01/hedges-a-study-in-meaning-criteria-and-the-logic-of-fuzzy-concepts-journal-of-philosophical-logic-2-lakoff-19731.pdf], rather than tightly defined buckets.  For each Subject, we suggest some of the most common examples: Entities may be physical things such as named products, or locations (a building, or a city); they could be Concepts, such as satisfaction; or they could be Relationships between entities, such as the variety of possible connections that define linkage in social networks.  Likewise, Events may indicate a time and place in the dictionary sense; or they may be Transactions involving named entities; or take the form of Signals, such as ‘some Measure had some value at some time’ - what many enterprises understand as alerts.   The central story of the Spectrum is that though consumers of analytical insights (represented here by the Business perspective) need to work in terms of Subjects that are directly meaningful to their perspective — such as Themes, Plans, and Goals — the working realities of data (condition, structure, availability, completeness, cost) and the changing nature of most discovery efforts make direct engagement with source data in this fashion impossible.  Accordingly, business analytics as a domain is structured around the fundamental assumption that sense making depends on analytical transformation of data.  Analytical activity incrementally synthesizes more complex and larger scope Subjects from data in its starting condition, accumulating insight (and value) by moving through a progression of stages in which increasingly meaningful Subjects are iteratively synthesized from the data, and recombined with other Subjects.  The end goal of  ‘laddering’ successive transformations is to enable sense making from the business perspective, rather than the analytical perspective.Synthesis through laddering is typically accomplished by specialized Analysts using dedicated tools and methods. Beginning with some motivating question such as seeking opportunities to increase the efficiency (a Theme) of fulfillment processes to reach some level of profitability by the end of the year (Plan), Analysts will iteratively wrangle and transform source data Records, Values and Attributes into recognizable Entities, such as Products, that can be combined with Measures or other data into the Events (shipment of orders) that indicate the workings of the business.  More complex Subjects (to the right of the Spectrum) are composed of or make reference to less complex Subjects: a business Process such as Fulfillment will include Activities such as confirming, packing, and then shipping orders.  These Activities occur within or are conducted by organizational units such as teams of staff or partner firms (Networks), composed of Entities which are structured via Relationships, such as supplier and buyer.  The fulfillment process will involve other types of Entities, such as the products or services the business provides.  The success of the fulfillment process overall may be judged according to a sophisticated operating efficiency Model, which includes tiered Measures of business activity and health for the transactions and activities included.  All of this may be interpreted through an understanding of the operational domain of the businesses supply chain (a Domain).   We'll discuss the Spectrum in more depth in succeeding posts.

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  • Design Principles: An Illuminati For Better Solution

    From my earliest memory of programming, I was taught that we should do some level of design before coding. Somewhere around the way I started hearing phrases Dependency Injection, IoC etc., but whenever I asked people the need for these patterns, I seldom got an answer that satisfied me…

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  • Delayed Durability–I start to like it!

    - by Michael Zilberstein
    In my previous post about the subject I’ve complained that according to BOL , this feature is enabled for Hekaton only. Panagiotis Antonopoulos from Microsoft commented that actually BOL is wrong – delayed durability can be used with all sorts of transactions, not just In-Memory ones. There is a database-level setting for delayed durability: default value is “Disabled”, other two options are “Allowed” and “Forced”. We’ll switch between “Disabled” and “Forced” and measure IO generated by a simple...(read more)

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  • Columnar Databases

    - by jchang
    Ingres just published a TPC-H benchmark for VectorWise , an analytic database technology employing 1) SIMD processing (Intel SSE 4.2), 2) better memory optimizations to leverage on-chip cache, 3) compression, 4) Column-based storage. Ingres originated as a research project at UC Berkeley (see Wikipedia ) in the 1970s, and has since become a commercially supported, open source database system. Apparently, Ingres project people later founded Sybase. So Ingres in a sense, is the grandfather (or perhap...(read more)

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  • Did you get your Oracle Java Magazine with that?

    - by alexismp
    The Oracle Java Magazine November/December 2011 (#2) issue is out, including in downloadable PDF format. If you haven't already done so, subscribe (it's free) and get it. This edition has the following Java EE-related content: • Introduction to RESTful Web Services, Part 2 • Stress-testing Java EE 6 Applications • Adam Bien on bugs, bottlenecks, and memory leaks Expect more Java EE coverage in the January/Feb release.

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