I want to disable processor cache or in other words, want to read write data directly from RAM... Is there any way to make it possible? I am talking about on chip cache memory not any disk cache stuff.
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How do i disable the linux file cache on a xfs partition (both read an write).
We have a xfs partition over a hardware RAID that stores our RAW HD Video. Most of the shoots are 50-300gb each so the linux cache has a hit-rate of 0.001%.
I have tryed the sync option but it still fills up the cache when copinging the files. ( about 30x over per shoot :P )
/etc/fstab:
/dev/sdb1 /video xfs sync,noatime,nodiratime,logbufs=8 0 1
Im running debian lenny if it helps.
I have Intel X25-V SSD connected to linux machine and its status is shown as "[sdb] Write cache: enabled, read cache: enabled" in dmesg. I knew we can disable write cache using hdparm. Is there any way to disable read cache and is this read cache present on SSD ?
View 1 Replies View RelatedI have problem with umounting usb flash drives. When I insert usb flash and copy big files to it ( 400MB ) copy process is quick ( system use cache to store files ). After this when I umount this drive, after 1 minute I got error that this drive cannot be unmounted ( because cache is not stored in drive, umount time limit I think ). How to disable write cache to usb flash drives, change its size or change umount timeout.
View 5 Replies View RelatedHow I can disable the driver cache or adjust it better?
I have
/ ext 2
everything else ext4 and my storage drive has xfs.
Anytime I need to do a reset, whatever is in the cache is unreadable afterward. I like to avoid this. The best would be not to have a reset, but sometimes it just happens. Can I do that?
I am reading slab allocator, it defines slab cache, i am quite confuse is it same as hardware cache?
View 2 Replies View RelatedI'm testing OpenSUSE 11.3 on a server and I'd like to disable the write cache on all of my drives. In Ubuntu Server I was able to accomplish this with hdparm by adding the appropriate settings to /etc/hdparm.conf
As far as I can find the only thing that OpenSUSE offers is /etc/sysconfig/ide which allows you to force particular DMA modes. I could just put the hdparm commands in /etc/init.d/boot.local but I'd prefer to do it the right way if there is a right way to do this in OpenSUSE.
i have installed ubuntu in my laptop.since i have AMD processor fedora doesnt support AMD processor..the recent version fedora 12 supprots AMD processor.i am doing my final project in ns2 hence it should support tht too!!! Which is the best choice to override ubuntu grub fedora 12 or redhat linux.
View 3 Replies View RelatedI don't understand this error nor do I know how to solve the issue that is causing the error. Anyone care to comment?
Quote:
Error: Caching enabled but no local cache of //var/cache/yum/updates-newkey/filelists.sqlite.bz2 from updates-newkey
I know JohnVV. "Install a supported version of Fedora, like Fedora 11". This is on a box that has all 11 releases of Fedora installed. It's a toy and I like to play around with it.
I was laughing about klackenfus's post with the ancient RH install, and then work has me dig up an old server that has been out of use for some time. It has some proprietary binaries installed that intentionally tries to hide files to prevent copying (and we are no longer paying for support or have install binaries), so a clean install is not preferable.
Basically it has been out of commission for so long, that the apt-get upgrade DL is larger than the /var partition (apt caches to /var/cache/apt/archives).
I can upgrade the bigger packages manually until I get under the threshold, but then I learn nothing new. So I'm curious if I can redirect the cache of apt to a specified folder either on the command line or via a config setting?
I installed squid cache on my ubuntu server 10.10 and it is work fine but i want to know how to make it cache all files like .exe .mp3 .avi ....etc. and the other thing i want to know is how to make my client take the files from the cache in the full speed. since am using mikrotik system to use pppoe for clients and i match it with my ubuntu squid
View 1 Replies View RelatedI have Ubuntu 10.04 with Gnome. Whenever I put in a blank CD/DVD an icon on the desktop appears named "Blank CD/DVD" and a window appears asking me what I want to do with it. How do I disable the window and the icon from the desktop?
View 2 Replies View Relatedi was looking for a way to stop my menus taking a few seconds to load my icons when i first open them and found a few guides suggesting using the gtk-upate-icon-cache command, but with the any colour you like icon theme i'm using (stored in my home folder .icons directory) i kept getting a "gtk-update-icon-cache: The generated cache was invalid." fault i used the inbuilt facility in the acyl script to copy the icons to the usr/share/icons directory and tried the command again, this time using sudo gtk-update-icon-cache --force --ignore-theme-index /usr/share/icons/ACYL_Icon_Theme_0.8.1/ but i still get the same error. i tried with several of the custom icon themes i've installed and only 1 of the first 7 or 8 i tried successfully created the cache.
View 4 Replies View RelatedIs it possible to convert/recompile an already compiled x86 binary into an ARM binary?I'm using a BeagleBoard with a command-line Ubuntu (Maverick) and want to run a Ventrilo server but the x86 executable they supply cannot be run on the hardware as far as I can tell (most likely due to differing architecture).Unfortunately I don't have access to the source to allow me to recompile it natively.
View 3 Replies View RelatedI am going to order the parts and build a new PC soon. One goal I have on my new machine will be to use Windows as little as possible and use Linux. In Linux I will need to use an emulator/virtual machine of some sort for things like playing World of Warcraft or City of Heroes and running Photoshop. (No, Gimp is not just as good for my needs). I plan to have 4Gb, to start, of ram and my question comes to one of processor selection. I assume that running a Windows app in Linux would be one of the most system taxing things I could do. Would I be better served by more processor cores or a higher clock speed for these tasks? I will undoubtedly have an AMD proc. I have been considering the following.
Athlon II X3 440 3.0 Ghz.
Phenom II X3 720 Black Edition 2.8 Ghz
Phenom II X2 555 Black Edition 3.2 Ghz
Athlon II X4 630 2.8 Ghz
AMD Phenom II X2 545 3.0 Ghz
I am leaning towards the X3 440 (or 435) for the sake of cost so that I can squeeze a discreet video card into my budget but that it outside the scope of my question. Extra info just in case The Black Editions are very over-clockable with unlocked CPU multipliers. The Phenom II CPUs have 6Mb of L3 cache and the Phenom II CPUs do not. The question boils down to how well Linux and Wine are multi-threaded to make use of all available cores and what impact, if any, L3 cache has in a Linux environment.
I was wondering if I would be if i able to use x86 linux distros with my 64 bit processor, or do I have to use the 64 bit version?
View 4 Replies View RelatedI have an old mini-desktop computer I want to have as a spare machine for internet browsing and checking email. It has a copy of XP currently, but the previous owner didn't put the key in so I can't get onto it at all. I plan on putting linux on it, just not sure what it can handle. It has 384 megs of RAM I believe, and the processor is a via C3, so I'm not even sure if I can run linux on it. I've checked the faqs and googled a bit, but I can't tell if it's i486, i586, or one of those things, and I'm not sure what linux distros(if any) are compatible. Will linux mint be able to run on a 900mhz processor of this sort and 384 megs of RAM? I'm thinking no, but it's the only linux distro I've dabbled with before. If not, will ubuntu? Will opensuse?
View 5 Replies View RelatedI want to delete 'processor' module, but simple modprobe -r doesn't work:
Quote:
$ modprobe -r processor FATAL: Module processor is in use.
How can I do it?
I guess it's natural. Processor module allows the cpu to go to C1-C3 states (in my case). It may be possible to do it brutally, by running a superfluous process to force C0, but I'd like a sophisticated way.
The reason I'd like it is I'm troubleshooting hibernation (s2disk). According to [URL], it's worth trying.
Any Linux distros which can support 32 processor ?
View 11 Replies View RelatedI read that AMANDA is only for Intel processors, but I have a PowerPC processor and I want to install AMANDA.Someone said that I have to find the distro of my RH and there should be AMANDA packages available.
My distro is: Red Hat Enterprise Linux AS release 4 (Nahant Update 7)Where can i find AMANDA for my distro??
I have quite an old laptop using an XP OS with an Intel(R)Pentium(R)M processor, 1400MHz 1.40GHz,with 504 MB of RAM,and with Service Pack 3. (this info was taken off the system properties info) I have recently been given a new HD Digital camera which needs a Pentium 4 or above on Windows XP for the software to work. As I said I'm not very good with this sort of thing so have searched for information about the subject, but not had much luck so far understanding the terminoligy used. That's how I came to this website. what the difference is between these two OS, also if my laptop system is compatable with a pentium 4 or not is it more or less that a pentium 4.
View 5 Replies View Relatedis there a way to retrieve the processor model without taking information from bios? I don't know which processor is really mounted. I want to set up the right processor timing, but I don't know the processor type. Every time I change the timing for the processor in BIOS another processor type is determined (I should be an Athlon XP +1500, I think, but I don't know really).
I think with less /proc/cpuinfo the results depends on the timing that is set in bios. So could you tell me how I can find out which processor is really mounted?
Just I need some clarification. Is there any different form compilation is for Intel ATOM processor? Its same like all other intel processors right? Or it has any different type of compilation should be followed for Intel atom processor?
View 5 Replies View RelatedJust i need some clarification. Is there any different form compilation is for Intel ATOM processor? Its same like all other intel processors right? or it has any different type of compilation should be followed for Intel atom processor?
View 1 Replies View RelatedI am trying to build a low cost computer, and over the last few days, I was interested in Linux as my OS to use. All I really need for the computer was the internet, word processors, and 3 games: "Wizard101", "Fusion Fall", and "Free Realms". Would Linux run on a built computer with an AMD processor and an on-board GPU? And would Linux run all of my needs/wants for this computer?
View 9 Replies View RelatedI am planning to by Dell Laptop having core i3 processor. Does Linux supports this processor ?
View 2 Replies View RelatedCan someone explain to me about the "core" and "thread" in the processor.
1. What is core?
2. What is thread?
3. What's the difference between core and thread?
Is there any command in linux to figure out , given a process, which processor the process is running? I am interested in figuring out the CPU busy and CPU idle time of that processor.
View 2 Replies View RelatedWhat is the best way to determine in Linux if a multi-processor machine is overloaded? I thought load was a good measure but I run a large number of tasks which don't consume a lot of CPU but which drive up the load. A 4 processor machine has a load of 66 right now according to top for example but mpstat reports that the all CPU idle time is 89%.
View 1 Replies View RelatedI need to set the CR4.MCE bit for all the cores on my system (4). I'd like to write a linux kernel module for that, but I am not sure how to proceed: How do you sequentially access all of the CR4 registers? I have read the Intel manuals and they describe a way to initialize each core, but this is done in the bios.
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