Messages in this thread | | | Date | Wed, 31 Oct 2007 16:03:10 -0400 | From | Benjamin Yates <> | Subject | 2.6.22+, CONFIG_NO_HZ=n, but irq/s looks like NO_HZ=y |
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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
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