Messages in this thread | | | From | Con Kolivas <> | Subject | Re: [BENCHMARK] vm swappiness with contest | Date | Tue, 31 Dec 2002 17:57:50 +1100 |
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On Tuesday 31 Dec 2002 5:37 pm, Andrew Morton wrote: > Con Kolivas wrote: > > On Tuesday 31 Dec 2002 5:08 pm, Andrew Morton wrote: > > > Con Kolivas wrote: > > > > -----BEGIN PGP SIGNED MESSAGE----- > > > > Hash: SHA1 > > > > > > > > On Saturday 28 Dec 2002 5:16 pm, Con Kolivas wrote: > > > > > Is there something about the filesystem layer or elsewhere in the > > > > > kernel that could decay or fragment over time that only a reboot > > > > > can fix? This would seem to be a bad thing. > > > > > > > > Ok Linus suggested I check slabinfo before and after. > > > > > > > > I ran contest for a few days till I recreated the problem and it did > > > > recur. I don't know how to interpret the information so I'll just > > > > dump it here: > > > > > > Looks OK. Could we see /proc/meminfo and /proc/vmstat? > > > > meminfo: > > MemTotal: 257296 kB > > MemFree: 47468 kB > > Buffers: 27028 kB > > Cached: 7480 kB > > SwapCached: 272 kB > > Active: 154968 kB > > Inactive: 42756 kB > > HighTotal: 0 kB > > HighFree: 0 kB > > LowTotal: 257296 kB > > LowFree: 47468 kB > > SwapTotal: 4194272 kB > > SwapFree: 4193816 kB > > Dirty: 1116 kB > > Writeback: 0 kB > > Mapped: 3740 kB > > Slab: 8564 kB > > Committed_AS: 6580 kB > > PageTables: 196 kB > > ReverseMaps: 1381 > > These numbers _look_ wrong, but ext3 truncate does funny things. > Could you now run a big usemem/fillmem application to try to allocate and > use 200 megs of memory, then resend /proc/meminfo?
post usemem: MemTotal: 257296 kB MemFree: 86168 kB Buffers: 392 kB Cached: 2244 kB SwapCached: 632 kB Active: 159484 kB Inactive: 1380 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 257296 kB LowFree: 86168 kB SwapTotal: 4194272 kB SwapFree: 4192668 kB Dirty: 60 kB Writeback: 0 kB Mapped: 1768 kB Slab: 6748 kB Committed_AS: 6588 kB PageTables: 196 kB ReverseMaps: 619
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