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SubjectRe: kswapd in tight loop 2.6.9-rc3-bk-recent
* Andrew Morton (akpm@osdl.org) wrote:
> Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> >
> > >I think a good starting point here will be to revert the most recent
> > >change.
> > >
> >
> > That may fix it for the simple fact that kswapd will just go through its
> > priority loop once then stop.
>
> No it won't. It'll probably make the priority windup worse.

In the interest of data collection, here's the last bit before I reboot.

SysRq : Show Memory
Mem-info:
Node 1 DMA per-cpu: empty
Node 1 Normal per-cpu:
cpu 0 hot: low 32, high 96, batch 16
cpu 0 cold: low 0, high 32, batch 16
cpu 1 hot: low 32, high 96, batch 16
cpu 1 cold: low 0, high 32, batch 16
Node 1 HighMem per-cpu: empty
Node 0 DMA per-cpu:
cpu 0 hot: low 2, high 6, batch 1
cpu 0 cold: low 0, high 2, batch 1
cpu 1 hot: low 2, high 6, batch 1
cpu 1 cold: low 0, high 2, batch 1
Node 0 Normal per-cpu:
cpu 0 hot: low 32, high 96, batch 16
cpu 0 cold: low 0, high 32, batch 16
cpu 1 hot: low 32, high 96, batch 16
cpu 1 cold: low 0, high 32, batch 16
Node 0 HighMem per-cpu: empty

Free pages: 53200kB (0kB HighMem)
Active:239438 inactive:178323 dirty:8 writeback:0 unstable:0 free:13300 slab:76700 mapped:52305 pagetables:2172
Node 1 DMA free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB
protections[]: 0 0 0
Node 1 Normal free:25272kB min:1020kB low:2040kB high:3060kB active:624172kB inactive:282700kB present:1047936kB
protections[]: 0 0 0
Node 1 HighMem free:0kB min:128kB low:256kB high:384kB active:0kB inactive:0kB present:0kB
protections[]: 0 0 0
Node 0 DMA free:728kB min:12kB low:24kB high:36kB active:788kB inactive:7848kB present:16384kB
protections[]: 0 0 0
Node 0 Normal free:27200kB min:1004kB low:2008kB high:3012kB active:332792kB inactive:422744kB present:1032188kB
protections[]: 0 0 0
Node 0 HighMem free:0kB min:128kB low:256kB high:384kB active:0kB inactive:0kB present:0kB
protections[]: 0 0 0
Node 1 DMA: empty
Node 1 Normal: 150*4kB 66*8kB 45*16kB 0*32kB 192*64kB 55*128kB 8*256kB 2*512kB 1*1024kB 0*2048kB 0*4096kB = 25272kB
Node 1 HighMem: empty
Node 0 DMA: 8*4kB 1*8kB 1*16kB 13*32kB 4*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 728kB
Node 0 Normal: 10*4kB 3*8kB 2*16kB 3*32kB 308*64kB 43*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 27200kB
Node 0 HighMem: empty
Swap cache: add 79, delete 1, find 0/0, race 0+0
Free swap: 2031292kB
524127 pages of RAM
10946 reserved pages
263444 pages shared
78 pages swap cached
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