From: Benjamin Yates <benjamin@rqdq.com>
To: linux-kernel@vger.kernel.org
Subject: 2.6.22+, CONFIG_NO_HZ=n, but irq/s looks like NO_HZ=y
Date: Wed, 31 Oct 2007 16:03:10 -0400 [thread overview]
Message-ID: <4728DF7E.9090606@rqdq.com> (raw)
can't find many references on this one, so posting here...
CONFIG_NO_HZ=n, but vmstat output shows int/sec which looks like a
dynticks setup.
vmstat lies?
vmstat needs an update?
-benjamin
root@blahblah /usr/src/linux # uname -a
Linux blahblah 2.6.23.1 #2 SMP Sun Oct 14 23:40:05 EDT 2007 i686 Dual
Core AMD Opteron(tm) Processor 185 AuthenticAMD GNU/Linux
root@blahblah /usr/src/linux # zcat /proc/config.gz | grep HZ
# CONFIG_NO_HZ is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
root@blahblah /usr/src/linux # vmstat 1
procs -----------memory---------- ---swap-- -----io---- -system--
----cpu----
r b swpd free buff cache si so bi bo in cs us sy
id wa
3 0 0 265492 85576 105432 0 0 45 153 26 230 24 28
47 1
0 0 0 265480 85576 105432 0 0 0 0 6 52 0 0
100 0
0 0 0 264976 85576 105432 0 0 0 0 9 65 1 3
96 0
0 0 0 265876 85576 105432 0 0 0 0 10 65 1 2
97 0
reply other threads:[~2007-10-31 20:03 UTC|newest]
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