I'm interesting in knowing what processes could be altered to improve performance and functionality on my system. And which process may be the best one to alter
View 2 RepliesI've found this page: [URL]
I've followed several suggestions on my system and overall performance is better.
My question is related to the following:
Quote:
OPTIMIZATIONS NOT RELATED TO STARTUP
Move your temporary files /tmp folder to your RAM if you have loads of memory. This will also provide you greater privacy. Edit /etc/fstab and add the following line to it
tmpfs /tmp tmpfs defaults,noexec,nosuid 0 0
Is this not normally implemented since some users don't have a lot of RAM?
Also, would it make that much difference if the system didn't have a lot of RAM to work with?
I had a external HD from Lacie that just made me mad because you could only log into it from a windows or mac machine. So I took the 250 HD out and through it in my P3 733Mhz Processor, 128 Ram Dell optiplex. Now My Lacie HD had a Network function on it where It had a webserver and a GUI to manage users to it. But it couldn't never get the HD to turn on for Network. It would only turn on when plugged into a USB. So I want to turn my Dell optiplex into a file server with web gui functionality. How should I start.
View 11 Replies View RelatedIs there anything that can be done to increase video streaming performance?The general impression I got is that it's mainly an adobe problem and not much can be done, though currently streaming is nearly unwatchable. When I switch from full screen to normal size many of the players freeze, ..... HD is unwatchable etc.
View 9 Replies View RelatedOn my system (OpenSUSE 11.4 - kernel 2.6.37) ifconfig indicates different interrupt number for eth0 than proc aqd sys file system.
ifconfig indicates 17:
proc fs indicates 43:
sys fs indicates 43:
Relevant part of lspci -vv output for irq 17 (this belongs to wlan0 and not to eth0):
Relevant part of lspci -vv output for irq 43:
To get the kernel messages of new java process, i refer the details from /proc/<java pid>/stat and /proc/<java pid>/statm files. For some java processes, I didn't find any details in the /proc/<java pid>/statm file. It has only 7 number of 0s. But /proc/<java pid>/stat file has the details. And also this kind of process will have the life time of nearly 1 minute.
Kernel version using: Linux-2.6.18-8.1.8.el5 Is there any possibility of java process without the memory details in the /proc/<java pid>/statm file? If it is possible, how to know the memory related details of that processes?
i have this directory with multiple images 'pics' and the size is 20mb, and i want to make a .zip or .rar package of this directory but with an increased size so the .zip/.rar file will be 100mb, and then when you extract it the file size is the original 20mb
View 10 Replies View RelatedI'm familiar with the software and hierarchy of the mount command but I can't find any info on why it is needed or preferred. What are the physical aspects of it? What is the burden of having files accessible all the time?
View 14 Replies View RelatedI was wondering if it was possible to hide the File Systems from a user. So when then browse through folders or choose to save something the default folder is their "home" folder. I am using SAM Linux distribution and don't want my users to be able to screw anything up! I use thunar as my file manager and was just wondering if it is possible?
View 12 Replies View RelatedI have to move files between two file systems /inst and /inst2.When I perform 'cp -a /inst /inst2' it copies everything even hidden files and preserves access permissions.But when I perform 'mv /inst /inst2' it also preserves access perms and moves everything besides hidden files.Questions :hy is so ?What tool to use when moving file systems from one fs to another (rsync) ?
View 8 Replies View Relatediv been looking around at the different Linux systems particularity the smaller ones such as DSL, Slax and Puppy Linux. However i need a Linux distribution that doesn't have a GUI desktop environment just the plain old terminal to work on. The system would have to be able to boot from a USB drive also. If anyone knows a systems that fits those requirements or something else related please post. Also what file system is best for USB drives for booting systems?
View 4 Replies View RelatedI've got the F13 LiveCD that I was able to boot and use using the "nomodeset" boot option. From the desktop I'm trying to perform an Install to Hard Drive. I've read the Install from LiveCD post regarding the creation of a /boot partition and a / root partition. I've tried creating them without the LVM group and with. But every time I appempt to install I get...
An error occurred mounting device proc as /proc: mount failed: (9, None). This is a fatal error and the install cannot continue.
Hardware is a Sager 8887 (P4, 3.06HT, 60GB HDD, Radeon 9000 graphics adapter)
What limits a file to have some maximum size depending on the Operating System? I do not exactly understand this. If you have the storage space, what else can be the limitation? You should be able to store as much data as you want the way you want (even in a single file) unless you run out of storage space.
View 5 Replies View RelatedOne of the good points of linux is that is easy to customize the partitioning scheme of the disk and put each directory (/home, /var, etc) in diferent partitions and/or diferent disk. Then we can use diferen file system/configurations for each of them for make them better. xamples:
noatime is a mount option to not write access time on the files. data=writeback is an option to layz write metadata on new files. ext3/4 has journaling that make the partition more secure in case of a crash. bigger blocks make the partition waste more space, but make it faster to read and may become more fragmented. (not sure) Then: What are the best filesystem/configurations for each directory? Note: given the answer of Patches, will only discuss /, /home and /var only.
/var -> It's modified constantly, it write logs, cache, temporal, etc.
/home -> stores important files.
/-> stores everything else (/etc and /usr should be here)
Back in the old days of PC-DOS 3.1, computers are much simpler than today's. I can learn a lot of how File System works with tools like PCTools, Norton Disk Doctor, and [URL]. Have been working exclusive in corporate database application area for over a decade, my knowledge of how these stuff work is diminishing. Standard-clean OS (Windows, Linux) installation is all I can do now. And it starts to cause me many data-loss troubles, when I have to perform something that I don't have much insight, such as install and remove peer linux os or move and resize partitions.
I'm looking for books, web resources, or communities where I can educate myself on how various file system works, for which I can have in-depth answer to questions such as:
How to remove ubuntu and grub2 ? (I recently did that, but with a lot of frustration when I was not really sure what I was doing and confront with some scary error message like "Missing BootMgr" What kind of disk-partitioning operation can be performed non-destructively, and why ? What is Active partition ? Primary Parition ? Extended Partition ? How it stored on the disk. There are many free partitioning tools out there, which one is safe to used ? NTFS, Ext3, Ext4, .. What the differences ? How to choose it wisely.
i have to upload a signature image(in jpeg format) to fill a recruitment form which says file-size must be of between 10-20 kb......i have scanned image which is of 9.5 kb.....tried to edit in shotwell photo manager....tried some random things in Adjust and crop menu but my little changes didn't work, it always shortened the file size......as i don't know anything about Image editing can someone tell me how can i increase the file size (>=10kb) i also tried gnome-screenshot to take the screenshot of the image, but it also saved the new image smaller than 10kb....
View 6 Replies View RelatedI am currently using the windows version of gVim to edit source files on a networked drive mapped to a linux system, as well as local files created in cygwin.
The problem is that the windows version of gVim destroys the original file permissions on the respective systems. IE: Files on cygwin are defaulted to 077. When edited by the windows version of vim they are saved as 777.This problem doesn't even occur when using ms-notepad (as well as all other editors I've tried), so I am not quite sure why gVim does it.
A possible solution would be to use cygwin's gVim for everything, but that's rather cumbersome as it requires running an x11 environment to support it, and it causes some problems when running some commands from within gVim (or vim for that matter) when working on the networked drive.
Any ideas how I might be able to maintain the existing file permissions?
This morning while on a different machine the problem with cygwin did not occur. Cygwin & gVim were the same version, however the other machine is running WinXP while the machine the problem is occurring on runs Win7.
A while back I installed Dreamlinux 3.5 Gnome edition using ext2. When I attempted to use the email address books I imported from the Dreamlinux3.5 XFCE edition, which had been ext3, I discovered that none of the email addresses could be mailed to. I had to manually type in the addresses.
When I reinstalled Dreamlinux 3.5 Gnome using ext3, the same backup files that did not work in ext2 now work just fine. The question is, was this a "broken data" problem caused by the switch to ext2 file system or something else? Has anyone else experienced this?
The mail program is Thunderbird.
I am administering a live web server i want to keep a backup of the access log file without disturbing the server performance. can anyone guide me how to to this. the size of teh log file run in GB so i will need to take a daily backup
View 7 Replies View Relatedwhich file is edited of kernel for boosting the application performance at boot
View 2 Replies View RelatedIm using it in an attempt to backup all of the files off of my dead Windows xp Computer. Right now I am using the 9.10 live disk of Ubuntu and cannot get the program to recognize what kind of file system my internal hard drive is using. (A western digital 320 GB hard drive with partition 1 in NTFS and part2 in FAT32) I would like to be able to back up this drive onto my 1 TB Western Digital external hard drive that is also in ntfs.
Now here comes the wierd part, it won't read or recognize my interal and external hard drives that run those file systems but it will recognize and allow me to read, edit, and access all of the ntfs hard drives on my home network. I did some lurking and tried a tutorial for creating a mount point and on how to force mount a disk, but neither of my disks would show up in Places/Computer. So then I checked the /etc/fstab file and is says,
aufs / aufs rw 0 0
tmpfs /tmp tmpfs nosuid,nodev 0 0
Which I think means that it says I have no hard drives installed or connected to the computer. Yet when I go into Disk Utility it tells me the disk is there and asks if I want to format the disk into ntfs...
wants some sort of logging capability on the system. to have a log of every change to every file, although that might be a bit unwieldy. perhaps a simpler compromise would be some way of monitoring a few specific folders, and tracking all changes to them, including the user that did so. Particularly important is that it should be possible to work with access through samba, as we want to track what users on the network are creating or changing files. Is there functionality like this already built into debian or samba? is there a useful additional app to gather this information? or am I going to need to be grep'ing log files to present something useable?
View 2 Replies View RelatedI am trying to edit the file shmmax in proc/sys/kernel/. I want to increase the value. I am using vim to edit it. But when I try to write and close the file I get the following error: "shmmax" E667: Fsync failed Press ENTER or type command to continue
View 3 Replies View RelatedTrying to change permissions on a file in /proc/sys/fs/inotify. The command syntax are:
Code:
sudo chmod u+w max_user_watches
and the result is:
Code:
chmod: changing permissions of `max_user_watches': Operation not permitted Also tried to change it when logged in as root, same results. Parent directory permissions are dr-xr-xr-x, and are the same up the chain. Tried to change the directory permissions to u+w, that didn't work either. FWIW, /proc is part of the / partition, and it has ~600MB free space.
I am trying to read the /proc/net/tcp6 file of a huge server (chat server) for monitoring the tcp6 connection states.
My server's tcp6 file has more than 26000 lines. For monitoring the server connections, my monitoring tool has to read the /proc/net/tcp6 file quickly in a regular interval (5 secs) and process. Presently it takes minimum 6-7 seconds for reading the whole file.
My tool can able to read the normal file (26,000 lines) less than 1 second, but it is not possible to read the same size of proc file.
I have 2 questions:
1) Why proc file takes more read time than normal file?
2) Is there any way to read the /proc/net/tcp6 file more quickly?
I am using RedHat MRG on a standalone intel PC that has 8 cpus. It has 2 Quad cores. I am trying to force some specific persistent tuning on it so that the OS and IRQs are all on one CPU socket and then I can run my Application on the other CPU socket (4 CPUs) using the taskset command.
I have been reading up on this mainly at [url] and having some success. But, I have one IRQ that is not active until my application runs that I want to force it to be on CPU 4.
And so I believe I can do this by setting /proc/irq/default_smp_affinity to 10. But, I do not have such a file on my system. How can I create this file at boot time properly?
I am booting RH 5.4 over network (PXE) with custom initrd.img. I managed to get NFS working and switch root and do normal RH /sbin/init, but as RH boots it complains about /proc/devices missing:/proc/devices: fopen failed: No such file or directoryThe file is indeed missing, even though I'm doing "modprobe dm_mod" before. But still /proc/devices is not created. What am I doing wrong?init script for that initrd.img:
Code:
#!/bin/bash
export LD_LIBRARY_PATH=/lib:/usr/lib:/usr/kerberos/lib
[code]....
I am trying to read the /proc/net/tcp6 file of a huge server (chat server) for monitoring the tcp6 connection states.
This tcp6 file has more than 26000 lines. For monitoring the server connections, my monitoring tool has to read the /proc/net/tcp6 file quickly in regular interval. Presently it takes minimum 6-7 seconds for reading the whole file.
My tool can able to read the normal file (26,000 lines) less than 1 second, but it is not possible to read the same size of proc file.
I have 2 questions:
1) Why proc file takes more read time than normal file?
2) Is there any way to read the /proc/net/tcp6 file more quickly?
I have to get soem statistic about interfaces from /proc/net/dev. but statistic on this file is reset when get reach more than 4G byte.I think linux has limitation on this case.
View 1 Replies View Relatedi'm using Centos 5.3 (2.6.27.10-grsec-xxxx-grs-ipv4-64 x86_64 kernel) and i got a problem with installing apf/configuring iptables. It seems that my kernel doesn't support Loadeble Kernel Modules. I'm receiving following message when catting /proc/modules: Quote: cat: /proc/modules: No such file or directory /sbin/modprobe -l FATAL: Could not load /lib/modules/2.6.27.10-grsec-xxxx-grs-ipv4-64/modules.dep: No such file or directory
View 4 Replies View Related