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Date: Tue, 9 Jul 2013 20:10:26 +0400
From: Lev Serebryakov <lev@FreeBSD.org>
Organization: FreeBSD
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Message-ID: <987136020.20130709201026@serebryakov.spb.ru>
To: freebsd-performance@freebsd.org, timur@FreeBSD.org
Subject: Re: Samba server performance -- only 33MiB/s with one client on 1G
 network!
In-Reply-To: <1885849141.20130708010224@serebryakov.spb.ru>
References: <866737084.20130707233704@serebryakov.spb.ru>
 <1885849141.20130708010224@serebryakov.spb.ru>
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Hello, Lev.
You wrote 8 =D0=B8=D1=8E=D0=BB=D1=8F 2013 =D0=B3., 1:02:24:

LS> Hello, Lev.
LS> You wrote 7 =D0=B8=D1=8E=D0=BB=D1=8F 2013 =D0=B3., 23:37:04:

LS>>   So, smbd is NOT limited by:
LS>>     (1) FS (33MiB/s vs 280MiB/s).
LS>>     (2) Network (33MiB/s vs 820Mbit/s / 97MiB/s).
LS>>     (3) CPU (50% vs 100%, CPU is 150% idle!).
LS>>   Why samba performacne is so loosy? What could
LS>  I've "ktrace" smbd process in question and see a lot of
 Ok, poll() takes 98.5% of time spent by samba process! Is it Ok?!
 And getegid()/geteuid() is takes 30% of calls (but only 0.1% of time)!
 But this poll() prevalence is not clear to me. So, it wait something most
of time? What?

--=20
// Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>