Testing of filesystems
Hi,
I wonder what a good way is to stress test my JFS filesystem. Is there a tool that does something like that maybe? Dont't want performance testing, just all kinds of stress testing to see how the filesystem "is" and to check integrity and functionality.
What are you filesystem developers use to do something like that?
Thanks,
Axel
Quoted 10 lines · Axel Siebenwirth
Hi,
I wonder what a good way is to stress test my JFS filesystem. Is there a tool that does something like that maybe? Dont't want performance testing, just all kinds of stress testing to see how the filesystem "is" and to check integrity and functionality.
What are you filesystem developers use to do something like that?Thanks,
Axel
Compile the kernel in a directory tree on the file-system you want to test......
while true ; do make clean ; make -j 16 bzImage ; make modules ; done
Let this run for a day or so...
Cheers,
Dick Johnson
Penguin : Linux version 2.4.18 on an i686 machine (797.90 BogoMips). The US military has given us many words, FUBAR, SNAFU, now ENRON. Yes, top management were graduates of West Point and Annapolis.
Quoted 7 lines · Axel Siebenwirth
Hi,
I wonder what a good way is to stress test my JFS filesystem. Is there a tool that does something like that maybe? Dont't want performance testing, just all kinds of stress testing to see how the filesystem "is" and to check integrity and functionality.
What are you filesystem developers use to do something like that?
while sleep 1; do
for i in seq 1 100; do
dd if=/dev/zero of=f$i bs=$(( $i * 100 )) count=$(( $i * 10 ))
done
cat * >/dev/null
rm *
make -C dummy-kernel dep bzImage modules -j2
done
Quoted 8 lines · Alex Riesen
Quoted 7 lines · Axel Siebenwirth
Hi,
I wonder what a good way is to stress test my JFS filesystem. Is there a tool that does something like that maybe? Dont't want performance testing, just all kinds of stress testing to see how the filesystem "is" and to check integrity and functionality.
What are you filesystem developers use to do something like that?
You may also want to take a look at the tests in the Linux Test Project. There are several tests there that target the filesystem.
Paul Larson
Linux Test Project
http://ltp.sourceforge.net
Quoted 4 lines · Axel Siebenwirth
I wonder what a good way is to stress test my JFS filesystem. Is there a tool that does something like that maybe? Dont't want performance testing, just all kinds of stress testing to see how the filesystem "is" and to check integrity and functionality.
See the ext3 cvs tree at
http://sourceforge.net/projects/gkernel
[Jeff Garzik's CVS tree hosts the ext3 tree.]
Andrew Morton, being conscientious and methodical, has written lots of filesystem testing tools during his work on ext3. Some of these tests are for specific ext3 regressions, but many are useful as general integrity tests oriented toward journalled filesystems. He has also ported/improved several other tools, including a bunch of changes to the notorious FSX, the File System eXerciser.
The Namesys folks also have a test suite for Reiserfs, see www.namesys.com.
Regards,
Bill Rugolsky
What sort of tools _have_ been used to test JFS to date? and - what version(s) have been tested?
Quoted 29 lines · Bill Rugolsky Jr.
Quoted 4 lines · Axel Siebenwirth
I wonder what a good way is to stress test my JFS filesystem. Is there a tool that does something like that maybe? Dont't want performance testing, just all kinds of stress testing to see how the filesystem "is" and to check integrity and functionality.
See the ext3 cvs tree at
http://sourceforge.net/projects/gkernel
[Jeff Garzik's CVS tree hosts the ext3 tree.]
Andrew Morton, being conscientious and methodical, has written lots of filesystem testing tools during his work on ext3. Some of these tests are for specific ext3 regressions, but many are useful as general integrity tests oriented toward journalled filesystems. He has also ported/improved several other tools, including a bunch of changes to the notorious FSX, the File System eXerciser.
The Namesys folks also have a test suite for Reiserfs, see www.namesys.com.
Regards,
Bill Rugolsky
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Signature · 4 lines
Roy Sigurd Karlsbakk, Datavaktmester Computers are like air conditioners. They stop working when you open Windows.
Quoted 8 lines
Hi,
I wonder what a good way is to stress test my JFS filesystem. Is there a tool that does something like that maybe? Dont't want performance testing, just all kinds of stress testing to see how the filesystem "is" and to check integrity and functionality.
What are you filesystem developers use to do something like that?
You can use the Scalable Test Platform at the OSDL.
We currently have iozone and tiobench test which support JFS, and we're looking to add other tests. For details, see
http://www.osdl.org/stp/
cliffw
Quoted 8 lines
Thanks,
Axel
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Quoted 1 line · Axel Siebenwirth
I wonder what a good way is to stress test my JFS filesystem. Is there a tool
<snip>
fsx.c came up a while ago on l-k. it's an old (but still very useful) fs stressor(sp) from neXT. i have a copy davej modded for linux. if you can't find it, i can send it to you. i haven't been brave enough to run it myself, on my alpha's reiserfs. 8) it found some hard to find bugs in ext2 that were lurking for years (iirc).
Signature · 2 lines
Tom Vier <[email protected]> DSA Key ID 0xE6CB97DA
Quoted 6 lines · Tom Vier
Quoted 3 lines · Axel Siebenwirth
I wonder what a good way is to stress test my JFS filesystem. Is there a tool
Quoted 10 lines
<snip>
fsx.ccame up a while ago on l-k. it's an old (but still very useful) fs stressor(sp) from neXT. i have a copy davej modded for linux. if you can't find it, i can send it to you. i haven't been brave enough to run it myself, on my alpha's reiserfs. 8) it found some hard to find bugs in ext2 that were lurking for years (iirc).
It found bugs in reiserfs and we fixed them.:)
Signature · 1 line
Hans
Quoted 19 lines · Hans Reiser
Quoted 6 lines · Tom Vier
Quoted 3 lines · Axel Siebenwirth
I wonder what a good way is to stress test my JFS filesystem. Is there a tool
Quoted 10 lines
<snip>
fsx.ccame up a while ago on l-k. it's an old (but still very useful) fs stressor(sp) from neXT. i have a copy davej modded for linux. if you can't find it, i can send it to you. i haven't been brave enough to run it myself, on my alpha's reiserfs. 8) it found some hard to find bugs in ext2 that were lurking for years (iirc).
Quoted 1 line
It found bugs in reiserfs and we fixed them.:)
fsx-linux is great. Caused me no end of grief in 2.5.13. Running it on small blocksize fs alongside really heavy memory pressure touches all sorts of corner cases.
I have a version which is tricked up to understand O_DIRECT in http://www.zip.com.au/~akpm/linux/ext3-tools.tar.gz