[Samba] Samba performance issues
Bradley W. Langhorst
brad at langhorst.com
Tue Sep 24 21:05:01 GMT 2002
try installing iostat
that should give you a measure of how much
cpu time disk access costs you.
the hardware seems appropriate to me
I use software IDE raid 5
maybe there is some problem with your scsi driver??
brad
On Tue, 2002-09-24 at 16:51, John Coston wrote:
> it's software RAID-1 using two fast wide scsi 36 gb discs. Filesystem
> is ext3. We have one 30gb partition for share data, and the rest is for
> system and swap.
> here is some of output from dmesg:
>
> md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
> md: Autodetecting RAID arrays.
> <...>
> scsi0 : sym53c8xx-1.7.3c-20010512
> scsi1 : sym53c8xx-1.7.3c-20010512
> blk: queue c3c57618, I/O limit 4095Mb (mask 0xffffffff)
> Vendor: HP Model: 36.4GB C 80-8C32 Rev:
> Type: Direct-Access ANSI SCSI revision: 02
> blk: queue c3c57818, I/O limit 4095Mb (mask 0xffffffff)
> Vendor: HP 36.4G Model: MAN3367MC Rev: HP04
> Type: Direct-Access ANSI SCSI revision: 02
> <...>
>
> I'm not too swift on filesystems and discs, so let me know if there is
> more info you need & thanks
>
>
> On Tuesday, September 24, 2002, at 01:40 PM, Bradley W. Langhorst
> wrote:
>
> >
> > On Tue, 2002-09-24 at 15:57, John Coston wrote:
> >> 12:46pm up 2 days, 17:14, 3 users, load average: 20.24, 20.26,
> >> 20.51
> >> 129 processes: 106 sleeping, 23 running, 0 zombie, 0 stopped
> >> CPU states: 36.1% user, 63.8% system, 0.0% nice, 0.0% idle
> >> Mem: 3229040K av, 3166372K used, 62668K free, 0K shrd,
> >
> > i have about 20 users on a 900Mhz machine with 100G of storage (only
> > 384M ram)
> >
> > i don't think it's ever been cpu bound as a result of samba activity.
> >
> > that 63.8% system seems out of whack...
> > what is the disk subsystem?
> >
> > brad
> >
> >
>
>
>
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