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  • Xeon X5550 vs Six-core Opteron for database server

    - by gregmac
    I'm specing out a database server, and the price works out to be reasonably close between an Intel X5550 Quad-core and an AMD 2425HE (2.1Ghz) Six-core Opteron. I've been looking for some comparisons between the two, but the only thing useful I've found is an AnandTech Review of the 2435 which compares it to Intel Xeons, but concludes they both have their place. My load is MS SQL Server 2008, with an OLTP database that has about an equal amount of reading/writing (and it's a reasonably heavy load). So my question is, what is going to work better in this situation, assuming the drives are the same: Xeon X5550, with 16GB 1333Mhz RAM (Dell R510) or an Opteron 2425HE (2.1Ghz) or 2439SE (2.8Ghz) with 16GB of 800Mhz RAM? (Dell 2970) Note: the 2439 adds $500, but the overall pricing works out that it's not that much more than the R510. Using the 2425HE, the Dell 2970 server is slightly less than the similarly-equipped R510). If it adds a decent amount of performance, it's worthwhile to go faster. (single CPU, in both cases).

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  • How to increase video memory in libvirt/KVM gui?

    - by Dejan
    In the 'Virtual Hardware details', it lists the model as 'cirrus' with 9MB of RAM. The RAM field cannot be changed, but how to increate the video RAM? My host OS is RH6 and gust OS is Fedora16. EDIT: From guest OS, when I run xvinfo it displays 'no adaptors present'. I was trying to play a video using gstreamers xvimagesink plugin (XFree86 video output plugin using Xv extension). The problem is that xvimagesink is using hardware acceleration for video performance and hence the error Could not initialize Xv output. I guess I'll have to configure hardware acceleration for the guest.

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  • Best way to backup and restore millions of files

    - by bongo
    Hi, I'm facing a rebuilding of the volume on which I host the mail storage (kerio mailserver, which uses maildirs). I need to backup and restore as quick as possible the 3.5+ millions (for about 600GB) small files of the store directory. It takes more than 12 hours via rsync to a NFS share, but I also have a 1TB firewire 800 raid1 disk that I can use (from some preliminary tests it's faster). I'm working off a XServe intel. What is the fastest way to do it? Rsync? Finder copy? tar?

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  • Loadbalance UDP traffic with session affinity and way to take servers in & out of rotation

    - by William
    What is the best way to go about load balancing UDP traffic among a whole bunch of servers, while keeping session affinity based on the users' IP? I need to also be able to take servers in and out of rotation for new clients, so when they join for the first time, they get put on a server in a list of available servers, and clients already connected would stay connected to their specific server. I have written the software to maintain a list, but I can't seem to find anything that would perform this functionality. If you need the context, this is to facilitate game tournaments for Minecraft: Pocket Edition, which is done with UDP traffic, I cannot change the protocol. And, because tournaments open and close, I need to be able to place players on their proper servers. Performance is also a priority, I have a program to do this but it is very bloated and slow. Thanks for any help! William

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  • Can't Install Windows 2008 R2 on Lenovo Laptop With SSD

    - by Ben
    I am trying to install Windows Server 2008 R2 on a new Lenovo X201 or T410 laptop. Setup halts with the following pop-up: A required CD/DVD device driver is missing. If you have a driver floppy disk, CD, DVD, or USB flash drive, please insert it now. Note: If the windows installation media is in the CD/DVD drive you can safely remove it for this step. The CD drive is obviously working, as it's booting from CD to get to this point. The only thing I can think is that it is to do with the fact they have SSD disks in - but that's just a guess.

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  • Secondary drive corrupted/not reading

    - by Sebastian
    When I connect my Seagate Barracuda to the computer, it shows up on the list of drives in Windows Explorer, but right clicking on it crashes Windows Explorer, opening it won't do anything, and I cannot start disk manager when it is connected. Trying to search the drive also freezes Windows Explorer. I have tried to run CHKDSK on it, and it was "unable to read $J data stream" for the Usn Journal. Also, it was an internal drive, but I pulled it out and hooked it up externally so I could test if it was that drive causing the problems. Is there any way for me to copy the files off of the drive?

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  • Intel Core i7-4960HQ vs. 4850HQ (Haswell) [on hold]

    - by Timothy R. Butler
    I'm looking at the new MacBook Pros and trying to decide between the Core i7-4960HQ (2.6 GHz) and i7-4850 (2.3 GHz). I've found some synthetic benchmarks comparing them, but I haven't found a lot of data, so I'd appreciate any pointers to good comparisons for the Haswell family (especially these two processors). My cursory analysis seems to suggest there isn't a huge gain from the extra 300 MHz. I'd like to determine not only whether this is generally true, but also to figure out if the gains that are made in performance come at too high of cost. Is the 2.6 going to be pushing the limits of what can fit in a thin laptop without overheating? I've looked at some of Intel's documentation, but have not been able to determine what the normal and maximum operating temperature differences are for the models. In the past, there have been times that Intel's fastest models in a given range ran especially hot and/or consumed significantly more power compared to slightly slower models. Do those concerns factor into the current generation?

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  • BES 5.0 and MAPI calls to exchange system

    - by nysingh
    We have been using BES 4.1(5) for a while now and it has been a resource hog on exchange due to high number of MAPI calls. I have heard that BES 5.0 is even worse. the comparison i heard is that BES 4.1 is makes MAPI calls equal to 5 outlook clients per BB user and BES 5.0 makes MAPI calls equal to 10 outlook clients per BB user. can someone confirm if it is true? is BES 5.0 is really that bad in MAPI calls and for exchange performance. ? thanks

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  • Log centralization, display, transport and aggregation at scale v2

    - by Eric DANNIELOU
    This is a duplicate question of Log transport and aggregation at scale and http://stackoverflow.com/questions/1737693/whats-the-best-practice-for-centralised-logging, but the answers might differ now : The softwares described in 2009 may have changed since (for example Octopussy evolved from version 0.9 to 1.0.5). Rsyslog has become the default on most linux distro. Requirements have changed (security, software configuration management, ...). I'd like to ask the following questions : How do you centralize, display and archive system logs? How would you like to do it now if you had to? Most linux distro use rsyslog nowadays, which can provide reliable log transport. But some older unices, network devices and maybe windows box still use old udp rfc-style transport. How did you manage to get reliable transport? Storing logs for a few months can represent a huge amount of disk space. How do you store them? rdbms? Compressed and encrypted text files?

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  • Alfresco Community Edition Consultants

    - by Talkincat
    I am in the process of putting together an document management system based on Alfresco Community 3.2r2. Because Alfresco will not allow its partners to work with the Community edition, I have found it devilishly tricky to find consultants that specialize in Alfresco to help me with this project. Can anyone point me in the direction of someone that can help me get this system up an running? I will mostly need help with integrating Alfresco with Active Directory (LDAP passthrough, user/group sync and SSO) and performance tuning the system. Any help is greatly appreciated.

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  • Bad I/O scheduler?

    - by user62367
    os: up-to-date Fedora 14. Working as a "normal desktop". It's doing very well, but if i start VirtualBox, and e.g.: install a guest on it, it just "freezez". I mean if there are disk activities on a VirtualBox guest, then the computer becomes unrespondable..even the mouse is laggin for about 50 minutes.. What could be the bottleneck? What could be the problem? If anyone has any tips/howtos to speed it up, please help! It has a normal 2,5" HDD, with 5400 RPM. Does it worth for me if i buy a 2,5" HDD with 7200 RPM? T7200 cpu, 4 GByte RAM, "vm.swappiness = 0". Thank you!

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  • Does my motherboard support dual-core processors?

    - by Filip
    Hi there! I'm very confused about my motherboard (ConRoe945PL-GLAN) It's manual says, that i can use only some kind of ConRoe processors. But some pages on internet says that i can plug in almost everything. For ex.: aria.co.uk says that i can plug in even Core 2 Duo. It would be awesome if i would not have to buy new motherboard! Anyway, if my motherboard will not let me to plug in Core 2 Duo, should i buy Pentium 4 (very cheap) with 3,2 GHz and insanely overclock it to have some performance or buy new motherboard + new processor for big money? THX for any answers! =)

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  • my windows xp sp3 diagnostick:windows could not detect any wired or wireless network cards installed on your machine

    - by Yosef
    Problem: cant connect to internet with my new installation of windows xp sp3. Details: I have ubuntu in pc that worked with wired internet. i format all disk and install windows xp sp3. i have auto internet that defined in my router - other computers have internet. I run diagnoze of ie and get: windows could not detect any wired or wireless network cards installed on your machine In Device Manager i have only 1394 Adapter I dont see any internet adapters. Edit: I find with ubuntu livecd that i have hardware:82566dc gigabit network connection Thanks

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  • What does the number after 7-zip's -m switch mean?

    - by AndreKR
    7-zip has a command line switch to set the compression method, -m followed by a number, e.g. -m0=LZMA. What does the number (0 in the example) mean? Different numbers produce slightly different compression results and performance: time 7z -m0=LZMA -mx=9 -ms=on -mmt=off real 0m2.292s user 0m2.190s sys 0m0.080s time 7z -m1=LZMA -mx=9 -ms=on -mmt=off real 0m2.405s user 0m3.240s sys 0m0.070s time 7z -m0=LZMA -mx=9 -ms=on -mmt=on real 0m1.038s user 0m1.920s sys 0m0.150s time 7z -m1=LZMA -mx=9 -ms=on -mmt=on real 0m1.187s user 0m2.800s sys 0m0.130s

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  • Can i enlarge os c drive of my windows 8?

    - by Sorgatz
    Last year I got a new Western Digital WD Blue 500GB HDD to replace my old drive. The first thing I did was to install latest Windows 8. While installing Windows 8 I created 3 partitions, C drive for the OS and others for storage. The OS partition is 120GB (which at the time I thought would be plenty big) but I'm now realizing its too small! I wonder if it's possible to re-size HDD partition without reformatting and re-install my Windows 8. So that is my question, Can i enlarge os c drive of my windows 8 without having to re-format? I've used the Norton Partition Magic and Disk Management to make this happen but there doesn't seem to be any options to make it happen. Thanks for any help you guys can give regarding my question. I've worked hard to optimize my current install of Windows 8 and would hate to start all over again.

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  • Firefox "auto-complete" is very slow

    - by netvope
    Firefox version: 3.6 My places.sqlite is rather big (114MB, after being optimized by SpeedyFox.) If I turn on auto-complete, it may take 1 or 2 seconds for Firefox to accept a newly typed URL. To reproduce the issue: Type a URL into the URL bar, press enter. Nothing happens, and Firefox consumes 100% CPU (actually 50% of 2 cores) for 1 to 2 seconds Then Firefox start the network connection and load the webpage. Since it consumes 100% CPU, I don't think the bottleneck is the disk. I have some experience with SQLite and I know a 100MB DB is very small. To achieve the delay Firefox must be doing some expensive processing or inefficient queries. The issue does not appear if: auto-complete is turned off, or the URL is frequently used, or a new profile with no history is used Does anyone have any idea how to solve the problem? Should I file this as a bug? I don't want to give up my 100MB history, but I don't want to give up auto-complete either :)

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  • How to reset MacOsX while keeping BootCamp?

    - by ss814
    I have MacOsX 10.8.2 installed on my MacBook Pro and Windows 8 licenced on a BootCamp partition. I have messed up my MacOsx partition (problems while programming, .h files not found, old applications removed that still appears) and I wanna start back from a clean OS. Is there a Way to reset my partition (or reinstall, obviously) keeping my BootCamp partition safe ? I know I could use my recovery partition but I do not know if it won't delete my Windows and it no longer appears in disk utility. As I found no answers in the Internet, does someone how how to do that ? Thanks in advance.

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  • Options to optimize lotus notes 8.5.X

    - by Jakub
    Has anyone found actually useful optimization methods for the bulky, fat, eclipse giant, nuissance that is Lotus Notes 8.5? I want it to be fast, and not eat up system resources like crazy while I run it ALL day (as it is my company's corporate mail / cal / scheduling solution). I've tried various hacks for the JVM heap size (if I recall correctly). None really bring a performance improvement. I have a dual core cpu, if that helps (I tried going the route of optimizing JAVA for 2 cores in hopes it would work, but seen no speed improvement). Notes is just sooo bloated, anyone have any suggestions to optimize/mod this thing so it is more responsive and less of a resource hog. Note: I don't want to switch to the web version, or the standard stripped down versions, I am aware of those, I just cannot since we don't run those internally for the company.

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  • Setting up a laptop hard drive as a secondary on a tower?

    - by vermiculus
    I'm trying to install Windows 8 for a friend who has recently bricked a laptop hard drive. The new one is OEM so there is no OS - I need to be able to stick it in to my tower and load the new OS on it. Both bricked and replacement laptop hard drives are SATA and connect to my mobo just like any other. After I post this I'm going to check the BIOS and see if it shows up, but so far I don't have it showing up in Disk Management. Any ideas would be greatly appreciated.

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  • zabbix 2.2.1 no graphs in Web scenario

    - by Mick
    Hello for some time I have a problem with graphs in web scenarios on Zabbix 2.2.1, I put below the screen, this problem has appeared at every graph of web scenario This same scenario installed a second zabbixie that runs on my local virtual machine with zabbix. In my local machine all components of zabbix (server, frontend, agents), but in my production zabbix only zabbix frontend are separated from each other. Scenario for openerp ============================== Name: OpenERP Web Checks Application: New application: Authentication: Update interval (in sec): 60 Retries: 1 Agent: Internet Explorer 10.0 Steps: ============================== Name: OpenERP login page URL: http://openerp.test.com Post: Variables: Timeout: 15 Required string: Required status codes: 200 My zabbix server performance: Anybody have some idea how fix it ? Regards Mick

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  • WYSIWYG editor for structured text (suitable for SVN versioning)

    - by chris_l
    I'm looking for an open source cross platform WYSIWYG editor that I can use to write documentation. I'm not looking for a web based solution - i.e. it should work without a web server, and I want to save my files directly to disk. The result could be any structured format, like Wiki markup, ReStructuredText, DocBook, or a small subset of HTML, ... But it's important, that Subversion diff can be used to see differences between the versions easily (this wouldn't work with .odt or .rtf files for example) I'm currently thinking about using Open Office, and saving the files as HTML, but is there a better solution?

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  • Where should I go to learn about networking? [closed]

    - by Ollie Saunders
    I wonder if anyone could recommend resource or resources such as a good book that: explains how all the important protocols work and interact. I’m interested in those that are relevant in a typical home network and used over the Internet explains in detail how ADSL Internet connections work to the level of depth necessary so that I’m able to tweak and measure performance settings starts from the beginning but attempts to provide proper understanding rather than idiot-oriented steps to follow Basically, I’m interested in how these technologies work and tend to be implemented in hardware and software rather than “here’s what to do if…” I’m interested in Computer Networking by Andrew S. Tanenbaum and I wonder if anyone else has any experience with that title. It’s expensive but I could probably loan a copy for £3 from the library or so.

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  • Route gameserver traffic through cloudflare?

    - by Michael
    I use cloudflare for my website and we have a gameserver I was wondering if it is possible to route traffic through cloudflare. This recently sprung into my head when I realized that I could route Shoutcast through another of cloudflares port (8080) which does not do any performance enhancing or anything it just acts as a reverse proxy and stops DDoS. I then tried by setting up a subdomain with my gameserver IP cloudflared and then pinged the IP and Port. It seems to have connections but when actually connecting via the game it doesnt. Any ideas?

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  • MS SQL Server and "No Hard Drive Space Left"

    - by bobber205
    Got a server running a document delivery system on it. The machine is running extremely poorly (Windows XP). I've checked the regular things, like doing a memtest (turned out fine) and trying to degraf the HDD (not needed). The only thing weird about this machine is that its running MSSQL server. And Symantec Anitvirus. (ugh) Sometimes the machine reports "No hard drive space left". I immediately look at the one hard drive at the machine and it still has 20 gigs left. Each and every time. Could MSSQL server cause this? Could this be tied to the machine's terrible performance? Thanks!

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  • Missing over 100GB of Space on sda1 RHEL

    - by WifiGhost
    I have a server setup with a RAID 5 using (3) 500GB drives, 1 as a spare so unused in the RAID. So in my mind i start out with 990GB with the RAID 5 in place. When looking at DF or the built in disk space utility i only see a total of about 882GB, how can i find where the 100+GB went? How can i get it back? I've checked the RAID 5 BIOS and i see all the space. I've tried looking manually and through terminal commands with no luck. Filesystem - 1K-blocks - Used Available - Use% - Mounted on /dev/mapper/vg_web-lv_root 838084192 48368700 747153060 7% / tmpfs 12104644 592 12104052 1% /dev/shm /dev/sda1 495844 121546 348698 26% /boot /dev/mapper/vg_web-lv_home 82569904 259136 78116468 1% /home Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_web-lv_root 800G 47G 713G 7% / tmpfs 12G 592K 12G 1% /dev/shm /dev/sda1 485M 119M 341M 26% /boot /dev/mapper/vg_web-lv_home 79G 254M 75G 1% /home

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