03-07-2013
thanks.
our servers are quite old, and we might have to use used RAM.
is there a risk of physical damage to server if RAM modules are faulty?
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi
How can i find the total ram in the system?
:confused: (4 Replies)
Discussion started by: orca
4 Replies
2. HP-UX
Hi all,
I would like know if we can enter a command under UNIX (HPUX 10.xx) to know the hard ram memory structure .
Thanks
Dorian (1 Reply)
Discussion started by: Dorian
1 Replies
3. UNIX for Dummies Questions & Answers
I need to have fast access to some of my files (like 5 Gb).
Im on:
Linux franklin3 2.4.21-4.EL #1 Fri Oct 3 18:13:58 EDT 2003 i686 i686 i386 GNU/Linux
How can I load my files in my RAM ?
Thank you in advance! (0 Replies)
Discussion started by: Gab
0 Replies
4. Solaris
What command should I be using on Solaris 9 to get an accurate representation of the available physical RAM? (4 Replies)
Discussion started by: dangral
4 Replies
5. AIX
Dear
How i can know the ( RAM and CPU ) on unix. we use AIX operating system.
This is for security purposes. (10 Replies)
Discussion started by: abu_hassan
10 Replies
6. Red Hat
Hi,
On server 64bit Hw Arch , Linux 5.0(32bit) is installed it is showing only 3gb of ram though physical is 16gb
can u give me idea why? (4 Replies)
Discussion started by: manoj.solaris
4 Replies
7. UNIX for Dummies Questions & Answers
Hi Guys,
How can i check the RAM usage for a particular user on the Linux machine.
What command can be used.
Thanks in advance,
Swapna (1 Reply)
Discussion started by: Swapna173
1 Replies
8. Hardware
is there a way to skip RAM check on sparc boot before the ok prompt? (2 Replies)
Discussion started by: orange47
2 Replies
9. Red Hat
hi guys,
I wanted to utilize my PC's full RAM memory to check its performance, for that how can i perform this full RAM utilization with the help of a process or a command in rhel 6.
for example, in windows, while checking the harddisk for error (chkdsk - command ) could takes full RAM... (7 Replies)
Discussion started by: redhatlbug
7 Replies
10. UNIX for Dummies Questions & Answers
hi,
i m working on my ubuntu 12.10 i wanted to update my desktop's RAM. so
kindly let me know how i get below details (thru commands in terminal)
1) what is the processor am using currently
2) what is the RAM am using currently
3) max how much i can upgrade my RAM (4 Replies)
Discussion started by: anandpasunoori
4 Replies
LEARN ABOUT DEBIAN
tiotest
tiotest(1) tiotest(1)
NAME
tiotest - Threaded I/O bench
SYNOPSIS
tiotest [-h] [-W] [-f SizeInMB] [-d TestDir] [-b BlkSizeInBytes] [-r NumberRandOpsPerThread] [-t NumberOfThreads] [-T] [-c] [-L] [-S] [-R]
[-D DebugLevel] [-k SkipTestNoN]
DESCRIPTION
tiotest is a file system benchmark especially designed to test
I/O performance with multiple running threads.
OPTIONS
-h Display a brief help and exit.
-W Instructs tiotest to wait for previous thread to finish before starting a new one in the writing phase. This results in the files
to be sequentially allocated and thus prevents them to be fragmented. Of course the writeside test is not parallel then but in
readside the files are physically more sequentially placed on the media (well this depends on the filesystem too).
-f SizeInMB
The filesize per threat in MBytes. Defaults to 10 MB.
-d TestDir
The directory in which to test. Defaults to ., the current directory.
-b BlkSizeInBytes
The blocksize in Bytes to use. Defaults to 4096.
-r NumberRandOpsPerThread
Random I/O operations per thread. Defaults to 1000.
-t NumberOfThreads
The number of concurrent test threads. Defaults to 4.
-T More terse output.
-c Consistency check data. This should be used for stresstesting the media rather than benchmarking (it will slow io and raise cpu
percentage). It is especially usefull to seek media for very hard to detect errors.
-L Hide latency output.
-S Do writing synchronously.
-R Use raw drives.
-D DebugLevel
Set the debug level.
-k fISkipTestNoN
Skip test number n. Could be used several times.
Example:
while tiotest -c -f 2000 ; do echo run ok ; done
To get usefull results the used file sizes should be a lot larger than the physical amount of memory you have. A good idea is to boot with
16 Megs of RAM (Try passing the "mem=16M" option to the kernel to limit Linux to using a very small amount of memory) and into Single User
mode only.
SEE ALSO
tiobench(1), bonnie(1), hdparm(8)
AUTHOR
tiotest was written by Mika Kuoppala <miku@iki.fi>.
This manual page was written by Peter Palfrader <weasel@debian.org>, for the Debian GNU/Linux system (but may be used by others).
Mac-2001 tiotest(1)