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  • How to impove Ubuntu performance on netbook

    - by Alexey Shytikov
    Most recent Ubuntu 12.04 seems to be quite nice and Unity (3D/2D) works fine for me, however not on my old Acer Aspire One any more. There was a times, when I switched from Windows XP to Ubuntu and was happy about system looks, effects and speed... now I attend to think that XP was really great comparing with 12.04. I have found similar questions here but no reasonable answer: how to lower CPU usage for Unity (3D/2D) and memory consumption for Ubuntu 12.04. With new interface I could not find how to disable background services... It's Linux, it's should be the way to optimize without buying new PC... Please share your recipe!

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  • Why ubuntu 12.04 Operating System too slow..?

    - by Sumit Singh
    I was using ubuntu 10.10 from last year. every thing was Ok with that. recently I've installed Ubuntu 12.04 in place of 10.10, after installing that on my Dell laptop, I started to feel uncomfortable. It to slow event if you move mouse then its feel like i'll take 1min to move one place 2 another.. I know why this is happening, all because of 12.04 runs my CPU up to 99%-100% all over time. And there are 2-3 processes who use all the cpu.. like 1. System_Monitor 2. compiz I don't know why its use all the CPU even Other app can't able to run .. in Ubuntu 10.10 every think was Ok.. Any solution for this problem..!! | Thank's

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  • How can Standard User change file associations in Windows 2000?

    - by Gary M. Mugford
    One of my clients is still running Win2K server with a host of Win2K workstations. And no net admin, due to the downturn of the economy over the years. I'm sort of helping out. Out of my depth, but I am a loyal foot soldier. A problem I encounter rather too often is a user double-clicks on a file in Explorer and then either gets no action, or the wrong program to run. It's a case of a missing or out-of-date file association. The current cure is to temporarily upgrade the user from Standard to Power, do the FA switch and then change back. As Winnie would whine, 'Oh, bother!' At any rate, I thought I'd ask here. Is there a method/program to run without the rigamarole FROM the Standard Users account on the workstation to edit/add a file association? I assume the program route would involve RunAs. I 'believe' most of the workstations run the RunAs service, but I could be wrong. I understand that's required, if there is to be a solution. Any help accepted with thanks. GM NOTE: Seems wassociate from http://www.xs4all.nl/~wstudios/Associate/index.html can resolve the issue.

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  • How can Standard User change file associations in Windows 2000?

    - by Gary M. Mugford
    One of my clients is still running Win2K server with a host of Win2K workstations. And no net admin, due to the downturn of the economy over the years. I'm sort of helping out. Out of my depth, but I am a loyal foot soldier. A problem I encounter rather too often is a user double-clicks on a file in Explorer and then either gets no action, or the wrong program to run. It's a case of a missing or out-of-date file association. The current cure is to temporarily upgrade the user from Standard to Power, do the FA switch and then change back. As Winnie would whine, 'Oh, bother!' At any rate, I thought I'd ask here. Is there a method/program to run without the rigamarole FROM the Standard Users account on the workstation to edit/add a file association? I assume the program route would involve RunAs. I 'believe' most of the workstations run the RunAs service, but I could be wrong. I understand that's required, if there is to be a solution. Any help accepted with thanks. GM NOTE: Seems wassociate from http://www.xs4all.nl/~wstudios/Associate/index.html can resolve the issue.

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  • Using DB_PARAMS to Tune the EP_LOAD_SALES Performance

    - by user702295
    The DB_PARAMS table can be used to tune the EP_LOAD_SALES performance.  The AWR report supplied shows 16 CPUs so I imaging that you can run with 8 or more parallel threads.  This can be done by setting the following DB_PARAMS parameters.  Note that most of parameter changes are just changing a 2 or 4 into an 8: DBHintEp_Load_SalesUseParallel = TRUE DBHintEp_Load_SalesUseParallelDML = TRUE DBHintEp_Load_SalesInsertErr = + parallel(@T_SRC_SALES@ 8) full(@T_SRC_SALES@) DBHintEp_Load_SalesInsertLd  = + parallel(@T_SRC_SALES@ 8) DBHintEp_Load_SalesMergeSALES_DATA = + parallel(@T_SRC_SALES_LD@ 8) full(@T_SRC_SALES_LD@) DBHintMdp_AddUpdateIs_Fictive0SD = + parallel(s 8 ) DBHintMdp_AddUpdateIs_Fictive2SD = + parallel(s 8 )

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  • Tired of Downloading Your Entire Schema? How About a Partial Download?

    - by user702295
    Proceed to document 1448266.1, Demantra Non Invasive Partial Schema Export Utility Extracting Partial Schema Dumps for Analysis.  In this document you will find instructions and 2 SQL scripts.  Give it a try.  If you have a problem, feel free to post to this BLOG or the community located at: https://communities.oracle.com/portal/server.pt/community/demantra_solutions/231 Regards!   Jeff

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  • Upgrading/Installing Demantra 7.3.1.1? Check this out!

    - by user702295
    Here is a summary for relase 7.3.1.1 install/upgrade/features Data Preservation Setting for General Levels  Deploying Demantra Application Server 10g  Important upgrade Information  Known upgrade issues  Mozilla Firefox Browser  Installer Issues  Reviewing / Simulating General Level Data Such as CTO Base Model Demand  Failure Rate Calculation  Demantra SSL Client Authentication and Java 6  CTO functionality does not work in release 7.3.1.1 after upgrading from 7.3.0 using the ‘Platform Upgrade Only’ option.  User Privileges and Export Worksheet to Excell  Cookie Attribute Causes Logging Issue in Worksheet  List of bugs fixed in 7.3.1.1 See the following for details. Demantra 7.3.1.1 Install / Upgrade Known Issues, Notes, Guidance, Defects, Workarounds (Doc ID 1370518.1) Related Documents For Demantra Version 7.3.1.1 And If Demantra Supports The Required Stacks (Doc ID 1367141.1)

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  • chrome memory and cpu footprint

    - by nmizar
    I've searched the forums for an answer but I couldn't find quite the answer I was looking for [1] , so I thought I it could as well be of interest to more people around here. I carry out a big part of my job on the browser (or for the browser, if you want to put it that way). I tend to use Chrome, because it's got natively many of the newest features that I need (DevTools stuff, mainly but not only). BTW, I'm usually running the last available Chrome version/build on a desktop Vaio with 4GB RAM and dual core CPU and Ubuntu 12.04 as distro and Gnome as window manager. So, I was curious about a) why does Chrome spawn so many threads even opening only three of four tabs and b) is there any way to allocate more memory to Chrome to prevent its performance from degrading? Thanks in advance, Nacho PS [1] I found threads about Chrome freezing or running out of memory but not about the reasons for this being so or for avoiding it to happen. PPS Of course, I could always buy a newer and more capable machine and that is exactly what I'm trying to evaluate: is this a question of outdated hardware or the problem will keep appearing on any (decently but not hugely sized) machine?

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  • Include all php files in one file and include that file in every page if we're using hiphop?

    - by Hasan Khan
    I understand that in normal php if we're including a file we're merging the source of it in the script and it would take longer for that page to be parsed/processed but if we're using HipHop shouldn't it be ok to just create one single php file and include every file in it (that contains some class) and every page which needs those classes (in separate file each) can just include one single php file? Would this be ok in presence of HipHop?

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  • Wha is an acceptable level of FPS in browser workslow editor?

    - by Theo Walcott
    I'm developing a diagraming tool and need some metrics to test it against. Unfortunately I couldn't find information regarding an average acceptable FPS level for this kind of web apps. We all know such levels for action games (which is 60fps minimum), 25fps for videostreaming. Can anyone give me some information reagarding minimal FPS level for drawing web apps? What tools would you recomend to test my app?

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  • Un-used Indexes on MDP_MATRIX Consuming Resources

    - by user702295
    Disable un-used Indexes: As much as it is recommended to create relevant indexes, it is advised not to have too many indexes on the mdp_matrix table.  Too many indexes will cause long waits on the table as indexes needs to get updated every time the table is updated.  There are many seeded indexes on mdp_matrix, every out of the box data model level has an index on the matrix table.  If a level is unused in the specific data model of the implementation, it is advisable to disable that index.  If the customer is not sure if and how indexes are utilized, the DBA can monitor all indexes.  After a few cycles of operation, the DBA should go over that list and see which indexes have not been used.  Consider disabling them. There are scripts on the net to monitor indexes or use the monitoring usage clause in the alter index statement.

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  • Can see samba shares but not access them

    - by nitefrog
    For the life of me I cannot figure this one out. I have samba installed and set up on the ubuntu box and on the Win7 box I CAN SEE all the shares I created. I created two users on ubuntu that map to the users in windows. On ubuntu they are both admins, user A & B on Windows User A is admin and user B is poweruser. User A can see both shares and access them, but user B can see everythin, but only access the homes directory, the other directory throws an error. I have two drives in Ubuntu and this is the smb.config file (I am new to samba): [global] workgroup = WORKGROUP server string = %h server (Samba, Ubuntu) wins support = no dns proxy = yes name resolve order = lmhosts host wins bcast log file = /var/log/samba/log.%m max log size = 1000 syslog = 0 panic action = /usr/share/samba/panic-action %d security = user encrypt passwords = true passdb backend = tdbsam obey pam restrictions = yes unix password sync = yes passwd program = /usr/bin/passwd %u passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* . pam password change = yes map to guest = bad user ; usershare max shares = 100 usershare allow guests = yes And here is the share section: Both user A & B can access this from windows. No problems. [homes] comment = Home Directories browseable = no writable = yes Both User A & B can see this share, but only user A can access it. User B get an error thrown. [stuff] comment = Unixmen File Server path = /media/data/appinstall/ browseable = yes ;writable = no read only = yes hosts allow = The permission for the media/data/appinstall/ is as follows: appInstall properties: share name: stuff Allow others to create and delete files in this folder is cheeked Guest access (for people without a user account) is checked permissions: Owner: user A Folder Access: Create and delete files File Access: --- Group: user A Folder Access: Create and delete files File Access: --- Others Folder Access: Create and delete files File Access: --- I am at a loss and need to get this work. Any ideas? The goal is to have a setup like this. 3 users on window machines. Each user on the data drive will have their own personal folder where they are the ones that can only access, then another folder where 2 of the users will have read only and one user full access. I had this setup before on windows, but after what happened I am NEVER going back to windows, so Unix here I am to stay! I am really stuck. I am running Ubuntu 11. I could reformat again and put on version 10 if that would make life easier. I have been dealing with this since Wed. 3pm. Thanks.

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  • Java JRE 7 Automatic Upgrade and Demantra Requirements - Action Required

    - by user702295
    The following applies to ALL Demantra, EBS and Demantra Oracle Integrations: All EBS desktop administrators must disable JRE Auto-Update for their end-users immediately. See this externally-published article:     URGENT BULLETIN: Disable JRE Auto-Update for All E-Business Suite End-Users     https://blogs.oracle.com/stevenChan/entry/bulletin_disable_jre_auto_update Why is this required? If you have Auto-Update enabled, your JRE 1.6 version will be updated to JRE 7.     This may happen as early as July 3, 2012.     This will definitely happen after Sept. 7, 2012, after the release of 1.6.0_35 (6u35).  Oracle Forms is not compatible with JRE 7 yet.  JRE 7 has not been certified with Oracle E-Business Suite yet. Oracle E-Business Suite functionality based on Forms -- e.g. Financials -- will stop working if you upgrade to JRE 7. Related News Java 1.6.0_33 is certified with Oracle E-Business Suite.  See this externally-published article:     Java JRE 1.6.0_33 Certified with Oracle E-Business Suite     https://blogs.oracle.com/stevenChan/entry/jre_1_6_0_33

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  • File Server Resource Manager attempting to access quota.xml on System Reserved partition?

    - by pmellett
    I've got a new install of Server 2008 R2 that is designed to be our quota server for user home directories and shared areas. I installed FSRM and set up a few quotas to try out. They worked fine but at some point over the weekend it's stopped loading the FSRM console quota screen and gives the following error, with Event ID 8228: File Server Resource Manager was unable to access the following file or volume: '\\?\Volume{73649de6-7f04-11e1-a344-005056b10310}\System Volume Information\SRM\quota.xml'. This file or volume might be locked by another application right now, or you might need to give Local System access to it. I have removed and reinstalled the FSRM Role Service, cleared the \System Volume Information\SRM folder on each volume and am at the verge of just starting again. I'd rather not since then I have to go through and set up all my NTFS permissions again. Since it looks like the service is trying to access the System Reserved partition, which I assume won't have any files it could possibly need, how do I remove System Reserved partition as a volume to be monitored for the quota service? (I am not aware of configuring that to be the case originally though!)

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  • Updates to the Demantra Partial Schema Exporter Tool, Patch 13930627, are Available.

    - by user702295
    Hello!  Updates to the Demantra Partial Schema Exporter Tool, Patch 13930627, are Available. This is an updated re-release of the generic Partial Schema Exporter Tool.  The generic patch is for 7.3.1.x and 12.2.x. TABLE_REORG was introduced in 7.3.1.3 12.2.0.  Therefore for 7.3.1.x the schema must be at 7.3.1.3 or above. This is build 3 of the patch. It contains fixes for the following bugs - BUG 17495971 - DEMANTRA 12.2 - CUMULATIVE HISTORY NOT CORRECT   It now only uses DATA_PUMP COMPRESSION only on Enterprise Edition for 11g and and up. - Bug 17452153 - 1OFF:16086475:TRYING TO FILTER DROP DOWN IN A METHOD CALL USING MORE THAN 1 ATTR   It now builds GL level filters with and without the GL id column where applicable. These bugs are also fixed in 7.3.1.6 and 12.2.3.

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  • What is an acceptable level of FPS in browser workslow editor?

    - by Theo Walcott
    I'm developing a diagraming tool and need some metrics to test it against. Unfortunately I couldn't find information regarding an average acceptable FPS level for this kind of web apps. We all know such levels for action games (which is 60fps minimum), 25fps for videostreaming. Can anyone give me some information reagarding minimal FPS level for drawing web apps? What tools would you recomend to test my app?

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  • Welcome to ubiquitous file sharing (December 08, 2009)

    - by user12612012
    The core of any file server is its file system and ZFS provides the foundation on which we have built our ubiquitous file sharing and single access control model.  ZFS has a rich, Windows and NFSv4 compatible, ACL implementation (ZFS only uses ACLs), it understands both UNIX IDs and Windows SIDs and it is integrated with the identity mapping service; it knows when a UNIX/NIS user and a Windows user are equivalent, and similarly for groups.  We have a single access control architecture, regardless of whether you are accessing the system via NFS or SMB/CIFS.The NFS and SMB protocol services are also integrated with the identity mapping service and shares are not restricted to UNIX permissions or Windows permissions.  All access control is performed by ZFS, the system can always share file systems simultaneously over both protocols and our model is native access to any share from either protocol.Modal architectures have unnecessary restrictions, confusing rules, administrative overhead and weird deployments to try to make them work; they exist as a compromise not because they offer a benefit.  Having some shares that only support UNIX permissions, others that only support ACLs and some that support both in a quirky way really doesn't seem like the sort of thing you'd want in a multi-protocol file server.  Perhaps because the server has been built on a file system that was designed for UNIX permissions, possibly with ACL support bolted on as an add-on afterthought, or because the protocol services are not truly integrated with the operating system, it may not be capable of supporting a single integrated model.With a single, integrated sharing and access control model: If you connect from Windows or another SMB/CIFS client: The system creates a credential containing both your Windows identity and your UNIX/NIS identity.  The credential includes UNIX/NIS IDs and SIDs, and UNIX/NIS groups and Windows groups. If your Windows identity is mapped to an ephemeral ID, files created by you will be owned by your Windows identity (ZFS understands both UNIX IDs and Windows SIDs). If your Windows identity is mapped to a real UNIX/NIS UID, files created by you will be owned by your UNIX/NIS identity. If you access a file that you previously created from UNIX, the system will map your UNIX identity to your Windows identity and recognize that you are the owner.  Identity mapping also supports access checking if you are being assessed for access via the ACL. If you connect via NFS (typically from a UNIX client): The system creates a credential containing your UNIX/NIS identity (including groups). Files you create will be owned by your UNIX/NIS identity. If you access a file that you previously created from Windows and the file is owned by your UID, no mapping is required. Otherwise the system will map your Windows identity to your UNIX/NIS identity and recognize that you are the owner.  Again, mapping is fully supported during ACL processing. The NFS, SMB/CIFS and ZFS services all work cooperatively to ensure that your UNIX identity and your Windows identity are equivalent when you access the system.  This, along with the single ACL-based access control implementation, results in a system that provides that elusive ubiquitous file sharing experience.

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  • How can I get my mysqld-swamped CPU under control?

    - by Shay Guy
    I was AFK for about 24 hours and came back to find gnome-system-monitor saying all four CPU cores on my laptop were running at full throttle. mysqld is taking up more than one full core; when I tried to end the process, it restarted with a new PID. Then there's ksoftirqd/0-3, which apparently has something to do with interrupts, but I can't tell from Google what I'm supposed to do with those four particular processes. They're taking up a quarter or more of my processor cycles. Then there's Chrome, but I can probably handle that on my own -- how do I cool down the other processes giving me problems?

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  • thunderbird-bin causing CPU (core) lockup (12.04, 64bit, up-to-date)

    - by david6
    I have experienced 2-3 unexplained lockup over last 10 days. Today, I had a random lockup (no mouse, keyboard response, 100% CPU). But, when I finally switched (Ctrl-Alt-F1) to command line (it took several minutes) it told me that thunderbird-bin had locked a CPU. I ran this to resolve: pidof thunderbird-bin sudo kill #### However, after saving other work, I tried restarting Thunderbird. It went to 90%+ CPU, and within 20 seconds it locked again. Once I have more detail I will raise a bug (on Ubuntu Forums). Does anyone have any other suggestions, advice?

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  • ksoftirqd uses 100% cpu

    - by andy
    I am running 32bit Ubuntu 10.04. A lot of the times ksoftirqd/0 or ksoftirqd/1 start using up 100% CPU for no apparent reason, and I am forced to reboot my laptop. Incidentally this also happens when I maximize my (youtube) videos on Chrome and Fireox, but once I un-maximize the videos the CPU usage goes down to the original levels. Any ideas what it going on? --- Addendum --- dmesg produces a ~2000 line output. I searched for 'error' and 'warning' in the output, and here are the relevant lines (along with some headers): [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 2.6.32-21-generic (buildd@yellow) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #32-Ubuntu SMP Fri Apr 16 08:09:38 UTC 2010 (Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2) [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-21-generic root=UUID=157dcfda-acd6-4d1b-a6a8-ff9ccff61906 ro quiet splash [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] BIOS-provided physical RAM map: [ 24.775546] EXT3-fs warning: mounting fs with errors, running e2fsck is recommended [44920.210518] ata1: SError: { PHYRdyChg CommWake 10B8B Dispar LinkSeq TrStaTrns } [44920.210531] res 40/00:00:f0:4b:7f/00:00:18:00:00/40 Emask 0x10 (ATA bus error) [58673.134623] chrome[20101]: segfault at 7f38bc4ad000 ip 00007f38be769ecc sp 00007fff24616850 error 4 in libpepflashplayer.so[7f38bdc08000+e55000] [ 24.775546] EXT3-fs warning: mounting fs with errors, running e2fsck is recommended [44920.210531] res 40/00:00:f0:4b:7f/00:00:18:00:00/40 Emask 0x10 (ATA bus error)

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  • Why is Thunderbird pegging a core at 100%?

    - by david6
    I have experienced 2-3 unexplained lockup over last 10 days. Today, I had a random lockup (no mouse, keyboard response, 100% CPU). But, when I finally switched (Ctrl-Alt-F1) to command line (it took several minutes) it told me that thunderbird-bin had locked a CPU. I ran this to resolve: pidof thunderbird-bin sudo kill #### However, after saving other work, I tried restarting Thunderbird. It went to 90%+ CPU, and within 20 seconds it locked again. Once I have more detail I will raise a bug (on Ubuntu Forums). Does anyone have any other suggestions, advice? UPDATE Thunderbird 13.0.1 is quite stable in safe mode. Still working to resolve ..

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  • Ubuntu ONE (Windows BETA) locks up - What to do?

    - by Zusch
    OS: Windows XP SP3 Hardware: Dell Precision M4400 (Laptop) CPU: Core2Duo T9600 Mem: 4 GB Installer- setup, first start and account- setup of UbuntuONE Windows client passed with no problems. After restart of UbuntuONE, the CPU- usage shows 50% (100% core usage). Exit- command (from context-menu) hides the trayicon, but the program is still working excessive in background (50% cpu- / 50 MB memory- usage), until UbuntuOneClient.exe is killed by the taskmanager. What's going on ?

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  • Why do we need a format for binary executable files

    - by user3671483
    When binary files (i.e. executables) are saved they usually have a format (e.g. ELF or .out) where we have a header containing pointers to where data or code is stored inside the file. But why don't we store the binary files directly in the form of sequence of machine instructions.Why do we need to store data separately from the code?Secondly when the assembler creates a binary file is the file is among the above formats?

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  • How do i fix the slow scroll in browsers and high XOrg cpu usage

    - by Virgil
    I am facing an issue while scrolling in browsers(firefox, chrome, and opera) , scroll is jagged and slow. Also when scrolling the cpu usage spikes. I am currently running ubuntu natty(beta 1), switched from ubuntu 10.10 where the problem was worse. I am using the nvidia beta driver, which ubuntu installed automatically. My graphic card is nvidia Quadro NVS 150M. I tried running ubuntu without the effects on , but when using multiple applications at the same time xorg usage spikes again. Additional info: 2GB of RAM and an intel core 2 duo processor. Any help would be greatly appreciated. Thanks in advance!

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  • Can certain system-hungry modules be disabled in Ubuntu?

    - by Ole Thomsen Buus
    Hi, Let me add some context: I am currently using Ubuntu 9.10 64-bit (Desktop) on a relatively powerful stationary PC (Intel Core i7 920, 12GB ram). My purpose is highspeed imaging with a pointgrey Grashopper machine-vision camera (for research, PhD project). This camera is capable of 200 fps at full VGA (640x480) resolution. The camera is connected using Firewire (1394b) and the drivers and software from Pointgrey works great. I have developed a console C++ application that can grap a certain number of frames to preallocated memory and after this also save the grapped frames to harddrive. Currently it works fine but sometimes I am observing a few framedrops (1-3). When this happens I reset the experiment and repeat the recording and usually i am lucky the second time with no framedrops (the camera-driver has a internal framecounter that I am using). Question: I usually go to tty1 and use "sudo service gdm stop" to disable the graphical frontend. It seems to release some memory though that is not my main concern. My concern is CPU resources. Are there other system hungry modules that can be disabled temporarily such that the CPU gets less busy on Ubuntu 9.10? At some point in the future I will update to 10.10. Should I perhaps option for the server edition instead? Thanks.

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