[lc-devel] a problem? - /proc/sys/vm/comp_cache/size
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[lc-devel] a problem? - /proc/sys/vm/comp_cache/size
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From: Michal P. <gl...@ir...> - 2002-07-05 11:12:36
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Hello,
i found, that /proc/sys/vm/comp_cache/size is chainging itself as it wants...
when i try to "echo 4096 > /proc/sys/vm/comp_cache/size" it changes
for a few seconds (probably to the first next compress/decompress) and
then it gains the last value.
(i'm trying to lower from ~11000 to 4096)
*lowering isn't possible for now?*
algorithm chainging is OK
Conf:
Latest version of your patch (downloaded yesterday)
All options for cache compression in kernel: ON
krnl2.4.18
sysRH 7.1
92MBSDRAM 366MHzCeleron66MHz 6.4GBATA33SegateDMAon
=====================
MemTotal: 92668 kB
MemFree: 5732 kB
MemShared: 0 kB
Buffers: 984 kB
Cached: 19096 kB
CCacheAlloc: 43572 kB
CCacheUsed: 34382 kB
SwapCached: 7880 kB
Active: 21596 kB
Inactive: 9920 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 92668 kB
LowFree: 5732 kB
SwapTotal: 385520 kB
SwapFree: 345268 kB
======================
compressed cache - statistics
algorithm WKdm*
Compressed Pages: 242208
Swap Cache: 69268
Page Cache: 172940
Dirty: 39359
Clean: 202849
Decompressed Pages: 86229
Swap Cache: 57916
Page Cache: 28313
Written Out: 10379
Swap Cache: 10379
Page Cache: 0
Faulted In: 88679
Swap Cache: 48722
Page Cache: 39957
Compression
MinSize: 272
MaxSize: 4372
AvgSize: 2866
Ratio: 69%
MinCycles: 24941
MaxCycles: 6049369
AvgCycles: 79958
Decompression
MinCycles: 9794
MaxCycles: 2154162
AvgCycles: 29394
============================
compressed cache - free space histogram
total 0f 1f 2f 3f more buffers nopg
0: 1852 0 1844 8 0 0 0 0
1 - 200: 5421 0 1802 3225 306 88 0 0
200 - 400: 1296 0 1024 182 70 20 0 0
400 - 600: 292 0 279 12 0 1 0 0
600 - 800: 318 0 315 2 1 0 0 0
800 - 1000: 203 0 200 3 0 0 0 0
1000 - 1200: 157 0 156 1 0 0 0 0
1200 - 1400: 456 0 456 0 0 0 0 0
1400 - 1600: 204 0 204 0 0 0 0 0
1600 - 1800: 203 0 203 0 0 0 0 0
1800 - 2000: 222 0 222 0 0 0 0 0
2000 - 2200: 23 0 23 0 0 0 0 0
2200 - 2400: 0 0 0 0 0 0 0 0
2400 - 2600: 0 0 0 0 0 0 0 0
2600 - 2800: 0 0 0 0 0 0 0 0
2800 - 3000: 0 0 0 0 0 0 0 0
3000 - 3200: 0 0 0 0 0 0 0 0
3200 - 3400: 0 0 0 0 0 0 0 0
3400 - 3600: 0 0 0 0 0 0 0 0
3600 - 3800: 0 0 0 0 0 0 0 0
3800 - 4000: 0 0 0 0 0 0 0 0
4001 - 4096: 20 20 0 0 0 0 0 0
==============================
--
Michal 'Glaeken' Plachta
gl...@ir...
Friday, July 05, 2002 12:58
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