Re: Severe trashing in 2.4.4

From: Alexander Viro (viro@math.psu.edu)
Date: Sun Apr 29 2001 - 11:27:29 EST


On Sun, 29 Apr 2001, Frank de Lange wrote:

> Running 'nget v0.7' (a command line nntp 'grabber') on 2.4.4 leads to massive
> amounts of memory disappearing in thin air. I'm currently running a single
> instance of this app, and I'm seeing the memory drain away. The system has 256
> MB of physycal memory, and access to 500 MB of swap. Swap is not really being
> used now, but it soon will be. Have a look at the current /proc/meminfo:
>
> [frank@behemoth mozilla]$ cat /proc/meminfo
> total: used: free: shared: buffers: cached:
> Mem: 262049792 259854336 2195456 0 1773568 31211520
> Swap: 511926272 4096 511922176
> MemTotal: 255908 kB
> MemFree: 2144 kB
> MemShared: 0 kB
> Buffers: 1732 kB
> Cached: 30480 kB
> Active: 26944 kB
> Inact_dirty: 2384 kB
> Inact_clean: 2884 kB
> Inact_target: 984 kB
> HighTotal: 0 kB
> HighFree: 0 kB
> LowTotal: 255908 kB
> LowFree: 2144 kB
> SwapTotal: 499928 kB
> SwapFree: 499924 kB

What about /proc/slabinfo? Notice that 2.4.4 (and couple of the 2.4.4-pre)
has a bug in prune_icache() that makes it underestimate the amount of
freeable inodes.

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This archive was generated by hypermail 2b29 : Mon Apr 30 2001 - 21:00:22 EST