Terje F�berg <[EMAIL PROTECTED]> skrev: > The kernel is compiling right now, but I cannot > reboot this machine until six or seven o'clock > tonight (CET). I will report then.
Well, well, I rebooted the same kernel, now with MAGIC-SYSRQ enabled. At first the kswapd-effect wouldn't show up, but now the image is much clearer than before. kswapd eats constantly 95% cpu time while the system is "idle". The System is quite sluggish. Switching between applications needs ages. After Eclipse has been active for a few minutes, I it lasts 45 seconds until enough of Mozilla is swapped back in, and Mozilla has redrawn its window. Complete info including SysRq-Meminfo is attached. Regards, Terje
galileo:~# vmstat 1 procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 1 0 286576 4984 8712 352232 0 0 0 88 1015 4288 5 95 0 0 1 0 286576 4984 8712 352232 0 0 0 0 1002 4278 5 95 0 0 1 0 286576 4984 8712 352232 32 0 32 0 1003 4365 7 93 0 0 1 0 286576 4984 8736 352256 0 0 40 0 1010 4296 6 94 0 0 2 1 286696 4856 8756 352328 0 120 920 120 1081 4406 4 96 0 0 1 0 287068 4936 8832 352496 104 448 588 568 1072 4422 7 93 0 0 1 0 287068 4936 8832 352496 0 0 0 0 1002 4275 5 95 0 0 1 0 287068 4936 8832 352496 0 0 0 0 1002 4289 6 94 0 0 1 0 287068 4936 8832 352496 0 0 0 0 1002 4324 6 94 0 0 1 0 287068 4936 8832 352496 0 0 0 0 1002 4285 5 95 0 0 1 0 287068 4936 8832 352496 0 0 0 0 1002 4271 5 95 0 0 1 0 287068 4936 8832 352496 0 0 0 0 1002 4335 6 94 0 0 1 0 287068 4936 8832 352496 0 0 0 0 1002 4297 5 95 0 0 galileo:~# cat /proc/vmstat > pre ; sleep 10 ; cat /proc/vmstat > post galileo:~# cat pre nr_dirty 201 nr_writeback 0 nr_unstable 0 nr_page_table_pages 1667 nr_mapped 113889 nr_slab 4289 pgpgin 1653048 pgpgout 532204 pswpin 67956 pswpout 84224 pgalloc_high 0 pgalloc_normal 6255968 pgalloc_dma 91765 pgfree 6350163 pgactivate 381383 pgdeactivate 364613 pgfault 2110239 pgmajfault 36305 pgrefill_high 0 pgrefill_normal 4903463 pgrefill_dma 116195 pgsteal_high 0 pgsteal_normal 366259 pgsteal_dma 17568 pgscan_kswapd_high 0 pgscan_kswapd_normal 2504667 pgscan_kswapd_dma 615532032 pgscan_direct_high 0 pgscan_direct_normal 60489 pgscan_direct_dma 11979 pginodesteal 0 slabs_scanned 510336 kswapd_steal 364044 kswapd_inodesteal 99903 pageoutrun 105762 allocstall 435 pgrotated 77400 galileo:~# cat post nr_dirty 31 nr_writeback 0 nr_unstable 0 nr_page_table_pages 1667 nr_mapped 113890 nr_slab 4285 pgpgin 1653308 pgpgout 532340 pswpin 67956 pswpout 84224 pgalloc_high 0 pgalloc_normal 6290302 pgalloc_dma 91765 pgfree 6384390 pgactivate 381413 pgdeactivate 364613 pgfault 2110638 pgmajfault 36308 pgrefill_high 0 pgrefill_normal 4903463 pgrefill_dma 116195 pgsteal_high 0 pgsteal_normal 366259 pgsteal_dma 17568 pgscan_kswapd_high 0 pgscan_kswapd_normal 2504667 pgscan_kswapd_dma 649881006 pgscan_direct_high 0 pgscan_direct_normal 60489 pgscan_direct_dma 11979 pginodesteal 0 slabs_scanned 514944 kswapd_steal 364044 kswapd_inodesteal 99903 pageoutrun 111269 allocstall 435 pgrotated 77400 galileo:~# cat /proc/meminfo MemTotal: 645976 kB MemFree: 8776 kB Buffers: 9228 kB Cached: 350380 kB SwapCached: 74776 kB Active: 443452 kB Inactive: 97500 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 645976 kB LowFree: 8776 kB SwapTotal: 2101056 kB SwapFree: 1812348 kB Dirty: 56 kB Writeback: 0 kB Mapped: 455596 kB Slab: 17124 kB CommitLimit: 2424044 kB Committed_AS: 1216312 kB PageTables: 6668 kB VmallocTotal: 384980 kB VmallocUsed: 16420 kB VmallocChunk: 367568 kB galileo:~# uname -a Linux galileo 2.6.10-4 #7 Thu Feb 3 16:34:30 CET 2005 i686 GNU/Linux galileo:~# uptime 20:39:55 up 50 min, 2 users, load average: 4.54, 3.05, 2.25 galileo:~# ps aux | grep kswapd root 105 34.5 0.0 0 0 ? R 19:49 17:27 [kswapd0] root 8111 0.0 0.0 1548 444 pts/4 S+ 20:39 0:00 grep kswapd galileo:~# dmesg [...] SysRq : Show Memory Mem-info: DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 cpu 0 cold: low 0, high 2, batch 1 Normal per-cpu: cpu 0 hot: low 32, high 96, batch 16 cpu 0 cold: low 0, high 32, batch 16 HighMem per-cpu: empty Free pages: 7872kB (0kB HighMem) Active:48698 inactive:86241 dirty:0 writeback:0 unstable:0 free:1968 slab:4509 mapped:50560 pagetables:1717 DMA free:80kB min:80kB low:100kB high:120kB active:0kB inactive:11716kB present:16384kB pages_scanned:123 all_unreclaimable? no protections[]: 0 0 0 Normal free:7792kB min:3152kB low:3940kB high:4728kB active:194792kB inactive:333248kB present:638976kB pages_scanned:0all_unreclaimable? no protections[]: 0 0 0 HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no protections[]: 0 0 0 DMA: 0*4kB 0*8kB 1*16kB 0*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 80kB Normal: 590*4kB 153*8kB 59*16kB 4*32kB 1*64kB 0*128kB 0*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 7792kB HighMem: empty Swap cache: add 173594, delete 157410, find 30045/43843, race 0+0 Free swap: 1763412kB 163840 pages of RAM 0 pages of HIGHMEM 9692 reserved pages 156561 pages shared 16184 pages swap cached
