I've just finished the first version of ufsstat, a tool to show local
filesystem statistics much like nfsstat does for NFS. The patch and
tool is against 6.0, but it will probably apply and work fine under
-CURRENT and possibly 5.x as well.
I'm looking for bug reports, comments/suggestions on style(9), and
anything else, since this is my first C project, and of course first
real FreeBSD contribution. :)
To use it, do this:
cd /tmp
fetch http://www.googlebit.com/software/ufsstat/ufsstat-20051011.tar.gz
cd /usr
tar xvzf /tmp/ufsstat-20051011.tar.gz
patch <./ufsstats.patch
add:
OPTIONS UFSSTAT
to your kernel.
Rebuild and install world/kernel.
Now, you can use ufsstat to show you statistics from your local
filesystems, like this:
# ufsstat
Create Remove Link Symlink Mkdir Rmdir Rename
289048 794043 4361 12558 25796 117739 0
GetAttr SetAttr Open Close ReadDir ReadLink VInit
64868230 759824 10701553 9891642 5042948 0 45315645
Chmod Chown Whiteout Strategy Access Mknod NewInode
409782 79612 0 4020035 0 3 0
Fsync SyncVnode LockVnode RdVnode WrVNode
0 0 0 0 0
ExtRead Extwrite FndExtAtt RdExtAttr OpnExtAtt ClseExtAt ExtStrtgy
0 0 0 0 0 0 0
or watch over time with the -w switch.
I have not done any performance testing yet to see if it impacts
filesystem performance by any measurable amount, so if someone does do
this testing before I do, please post your results!
Thanks in advance!
Eric
--
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Eric Anderson Sr. Systems Administrator Centaur Technology
Anything that works is better than anything that doesn't.
------------------------------------------------------------------------
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