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On 11/22/06, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote: > > Mel's patches alone aren't quite enough, you also need some reclaim > modifications, I'll ping Andy to see how far he's on that. > I think so. A quick look at Mei's patch, I found the patch can't help our case. The current situation is that the application need 8 M memory, but ther is only 5M free memory, cached memory eat almost 40Mbyte. When the application is requesting the memory, kernel just report failure, not attempt to release the VFS cache and try it again. ============================== root:/mnt> cat /proc/meminfo MemTotal: 54196 kB MemFree: 5520 kB <== only 5M free Buffers: 76 kB Cached: 44696 kB <== cache eat 40MB SwapCached: 0 kB Active: 21092 kB Inactive: 23680 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 54196 kB LowFree: 5520 kB SwapTotal: 0 kB SwapFree: 0 kB Dirty: 0 kB Writeback: 0 kB AnonPages: 0 kB Mapped: 0 kB Slab: 3720 kB PageTables: 0 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 27096 kB Committed_AS: 0 kB VmallocTotal: 0 kB VmallocUsed: 0 kB VmallocChunk: 0 kB ========================================== -Aubrey - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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