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  • Cat5 vs Cat5e vs Cat6 cable confusion

    - by David Hayes
    I'm just about to move house so I'm going to have to disconnect and re-wire my network. Pretty much all the devices I have support gigabit ethernet should I go out an buy some decent network cables (and if so what type) or should I continue using my mix of cat5 cables I've acquired over the years. Does the type of cable really make a difference to my LAN performance??

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  • Keepalived alternative for Solaris 10

    - by antispam
    We are considering an architecture like the one in the picture for Solaris 10 That is, high avalaibility software load balancers in front of web and application servers. Unfortunately, Keepalived is not available for Solaris at the moment. Is there an equivalent artifact for substituing Keepalived which is supported in Solaris 10? Is there an equivalent architecture for Solaris using HA SW load balancing? Thank you.

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  • What does the filesystem give me?

    - by Alec
    I'm writing a specialised database. It currently sits atop of ext4, with one big file that it reads and writes to. I'm wondering whether it would be worth forgoing the filesystem and reading and writing directly to the device. I already use O_DIRECT, so as far as I can tell it wouldn't require much of a code change. What might the risks, advantages and disadvantages of forgoing the filesystem be? Is it likely to improve performance, or harm it?

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  • Is bigger capacity ram faster then smaller capacity ram for same clock and CL?

    - by didibus
    I know that bigger capacity hard-drives with the same RPM are faster then smaller capacity hard-drives. I was wondering if the same is true for ram. Given two ram clocked at 1600mhz and with identical CLs: 9-9-9-24. Is a 2x8 going to perform better then a 2x4 ? Note that I am not asking if having more ram will improve the performance of my PC, I'm asking if the bigger capacity ram performs better. Thank You.

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  • Helicon ISAPI_REWRITE 3 - Not Logging Anything

    - by Brian
    Hello, The ISAPI_REWRITE Helicon product does not log anything... I setup logging to run as: [ISAPI_Rewrite] RewriteEngine on #enabling rewrite.log RewriteLogLevel 9 #enabling error.log LogLevel debug But nothing is getting logged. Is it something I'm doing, is it working? It is installed, it's given high priority in IIS (do see it visibly present). Any ideas why it isn't logging? Should it log even if not rewriting?

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  • HP Colour LaserJet Printer Hard Drive

    - by Jon Rhoades
    We are struggling to print Student's Theses on our HP CLJ CP4025 Printers (It will only let us print 1 at a time & typically they need multiple copies). Supposedly the solution is to install the optional Hard Drive. My question is: a) Does a hard drive on the printer make a significant difference? b) Can we use any old hard drive or do we have to use the rather pricey HP High performance EIO units?

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  • CentOS with an Ubuntu kernel

    - by Gaia
    The Rackspace cloud server tech tells my CentOS 5.4 VPS (Xen) runs "CentOS with an Ubuntu kernel" Could someone explain, in plain terms, what "CentOS with an Ubuntu kernel" means and if there are any disadvantages (performance, mgmt) between that and running CentOS with a CentOS kernel? Thanks

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  • iTunes resizing photos on sync.

    - by Ravi
    Hi All, When I synch my photos into iPhone/iPod through iTunes the photos are being resized to smaller ones. I need to get high resolution images without being resized into the device. Is there any way to do this other than saving images from mail or from browser etc ?. Thanks, Ravi

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  • RabbitMQ and persistence (blocking writes?)

    - by daharon
    I want to create a RabbitMQ server on a virtual machine (VMware) to be used in production. It will contain persistent queues. I'm wondering if it is a bad idea to store the server on a NAS that's accessed over NFS. Basically my questions are: Will RabbitMQ's writes be blocking? Will the entire queue's operation halt on a write? How much performance degradation should I expect when persisting over NFS?

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  • Handbrake --stop-at parameter not working as intended

    - by KG
    Hey all, I run the following from command line: handbrakeCLI.exe -i SourceFile.mkv -o OutputFile.mkv --stop-at 120 According to the CLIGuide you can supply the --stop-at value as seconds (which is what I want, stop encoding 120 seconds into the file). My purpose for this is to quickly create a very high quality video clip from a full movie for testing other encoding processes. However, when I view my output file it is the entire movie. Any ideas?

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  • Will HDCP cause problems with a MacBook Pro using a VGA projector?

    - by Andrew Grimm
    I'm planning on using a MacBook Pro with a projector that only has a VGA input (through the MBP's Mini DisplayPort and a Mini DisplayPort to VGA converter). Will this have problems with HDCP (High-bandwidth Digital Content Protection), either under Snow Leopard or Windows XP? I'll only be showing other people's photos, user-generated movies or PowerPoint slides. The MacBook Pro was purchased from Apple new in December 2009.

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  • Should I keep my swap file on an SSD drive?

    - by Steve Rowe
    I'm considering getting an SSD drive to run as the primary OS partition. As I understand, this should provide a substantial improvement in performance. My question is this: Should I leave the swap file on that drive? The swap partition will be largely random seeks and so should benefit from the speed. On the other hand, it will be constantly written to which will wear out the drive faster.

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  • What is the standard system architecture for MongoDB

    - by learner
    I know this question is too vague, so I would like to add some key numbers to give insights about what the scenario is Each Document size - 360KB Total Documents - 1.5 million Document created/day - 2k read intensive - YES Availability requirement - HIGH With these requirements in mind, here is what I believe should be the architecture, but not too sure, please share your experiences and point me to right directions 2 Linux Box(Ubuntu 11 would do)(on a different rack setup for availability) 64-bit Mongo Database 1-master(for read/wr1te) and 1-slave(read-only with replication ON) Sharding not needed at this point in time Thank you in advance

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  • Application to test a cluster/grid

    - by Mystic
    Is anyone aware of any application (computation + data) that I can download to test an in-house grid middleware that will run on a local cluster. I hope to compare the performance with other available grid systems.

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  • Looking for a AutoZoom browser plugin

    - by AngryHacker
    I have a pretty large 24" wide screen with a pretty high resolution. When I browse, some sites have a fixed layout and there is basically a narrow column. So I typically zoom in to the point just before the level where I have to scroll horizontally. Is there a browser plugin that auto-zooms in (or via a button or gesture or whatever) to the max available real estate? I'd prefer a plugin for Chrome, but Firefox will do too.

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  • Outlook 2007: Filter messages differently based on mailing lists

    - by Naseer
    I am part of two mailing lists, one of which is of high importance to me and should always show up in my Inbox and the other is not so important and should go to a specific folder. Sometimes both these mailing lists are in the To/CC list. In this case, I want the message to stay in my Inbox and not get moved. Is this possible with Rules and Alerts ? If not, is there a macro ?

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  • Windows server 2008 R2 error :The page file is to small to complete the action

    - by kishore
    I have a windows server 2008 R2 standard edition. The system suddenly stopped accepting remote desktop connections. When I tried to connect directly to the console, I am unable to start any applications. I got errors "The page file is to small to complete the action". Under takmanager in performance the system shows "Commit(GB) 127/127". What does this imply? The system has 32 GB ram, 5 raid disks each 150 Gb

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  • Shrink Sql Server database

    - by hani
    My SQL Server 2008 database file (.mdf) file is nearly 24 MB but the log file grown upto 15 GB. If I want to shrink database what are the important points to take into consideration? Will shrink causes any index fragmentation and does it affect my database performance?

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  • Can an SATA hard drive image be restored onto an SSD?

    - by Bryan Parker
    I'm currently using an SATA hard drive on my primary dev machine, but planning to upgrade to an SSD at some point soon. I use TrueImage on a regular basis to make backups, and to upgrade my harddrive without reinstalling everything. Will I be able to restore and boot onto an SSD? Will there be a performance hit or other issues to watch out for?

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  • Reduce Mac OS X's Flash CPU usage

    - by elhombre
    I have been experiencing high CPU usage (138%) on my MacBook, while looking at flash videos on the internet with the Firefox browser. Mostly this usage makes itself noticeable by the loud noise of the fans and a hot MacBook which is very annoying for me. Does anyone know how to solve this problem or a workaround in of any kind?

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  • CPU/Mem/Disk utilization (average) after process has completed

    - by BassKozz
    Ubuntu Server 9.10 So there is the time command which will show you the time it took for a specific process/command to run after the command has completed. For example: :~$ time ls real 0m0.020s user 0m0.000s sys 0m0.000s I'd like to also collect the average CPU usage, Memory, and Disk (i/o) utilization after the process has completed using time (or another command if necessary). How can I accomplish this? Mainly I am using this to benchmark MySQL import performance using different innodb_buffer_pool_size settings.

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  • compile Passenger statically into Apache httpd?

    - by Oleg
    I prefer to disable httpd dynamic module loading on my production server. I've been using mod_jk linked statically into httpd for quite a long time and it proved to be stable. Now I would like to add Ruby Passenger (mod_rails/mod_rack) to my httpd. I wonder if it is possible to link it statically into Apache httpd the same way too? (without producing a huge httpd) If it is, are there any potential pitfalls, safety or performance concerns having both mod_jk and mod_rails within the same executable? Thanks

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