Re: High CPU load with kswapd and heavy disk I/O
From: Ken Savage
Date: Tue Aug 12 2003 - 15:29:16 EST
On Tue August 12 2003 12:44, Nuno Silva wrote:
> Can you send before, during and after:
> cat /proc/meminfo
> cat /proc/slabinfo
Can't send "during" because the system is completely locked up
and unresponsive. There is no warning as to when it's about to
bomb out on kswapd, so I can't provide anything resembling a
"just before". OTOH, "after", I can since it just happened now! ;)
AFTER:
-----------
total: used: free: shared: buffers: cached:
Mem: 3710840832 2703040512 1007800320 0 427081728 522944512
Swap: 2147467264 57257984 2090209280
MemTotal: 3623868 kB
MemFree: 984180 kB
MemShared: 0 kB
Buffers: 417072 kB
Cached: 470384 kB
SwapCached: 40304 kB
Active: 509216 kB
Inactive: 1973064 kB
HighTotal: 2752448 kB
HighFree: 978908 kB
LowTotal: 871420 kB
LowFree: 5272 kB
SwapTotal: 2097136 kB
SwapFree: 2041220 kB
slabinfo - version: 1.1 (SMP)
kmem_cache 80 80 244 5 5 1 : 252 126
ip_conntrack 211 270 384 27 27 1 : 124 62
tcp_tw_bucket 19 90 128 3 3 1 : 252 126
tcp_bind_bucket 54 224 32 2 2 1 : 252 126
tcp_open_request 59 59 64 1 1 1 : 252 126
inet_peer_cache 4 59 64 1 1 1 : 252 126
ip_fib_hash 10 224 32 2 2 1 : 252 126
ip_dst_cache 12 120 192 6 6 1 : 252 126
arp_cache 6 60 128 2 2 1 : 252 126
blkdev_requests 384 390 128 13 13 1 : 252 126
nfs_write_data 0 0 384 0 0 1 : 124 62
nfs_read_data 0 0 384 0 0 1 : 124 62
nfs_page 0 0 128 0 0 1 : 252 126
journal_head 0 0 48 0 0 1 : 252 126
revoke_table 0 0 12 0 0 1 : 252 126
revoke_record 0 0 32 0 0 1 : 252 126
dnotify cache 0 0 20 0 0 1 : 252 126
file lock cache 1 42 92 1 1 1 : 252 126
fasync cache 0 0 16 0 0 1 : 252 126
uid_cache 2 112 32 1 1 1 : 252 126
skbuff_head_cache 328 640 192 32 32 1 : 252 126
sock 154 180 832 20 20 2 : 124 62
sigqueue 29 29 132 1 1 1 : 252 126
cdev_cache 12 177 64 3 3 1 : 252 126
bdev_cache 5 59 64 1 1 1 : 252 126
mnt_cache 14 118 64 2 2 1 : 252 126
inode_cache 33897 106547 512 15221 15221 1 : 124 62
dentry_cache 12195 12300 128 410 410 1 : 252 126
filp 2751 2790 128 93 93 1 : 252 126
names_cache 3 3 4096 3 3 1 : 60 30
buffer_head 223778 513540 128 17117 17118 1 : 252 126
mm_struct 180 180 192 9 9 1 : 252 126
vm_area_struct 2638 3030 128 101 101 1 : 252 126
fs_cache 76 236 64 4 4 1 : 252 126
files_cache 76 135 448 15 15 1 : 124 62
signal_act 90 117 1344 39 39 1 : 60 30
size-131072(DMA) 0 0 131072 0 0 32 : 0 0
size-131072 0 0 131072 0 0 32 : 0 0
size-65536(DMA) 0 0 65536 0 0 16 : 0 0
size-65536 0 0 65536 0 0 16 : 0 0
size-32768(DMA) 0 0 32768 0 0 8 : 0 0
size-32768 3 3 32768 3 3 8 : 0 0
size-16384(DMA) 0 0 16384 0 0 4 : 0 0
size-16384 12 12 16384 12 12 4 : 0 0
size-8192(DMA) 0 0 8192 0 0 2 : 0 0
size-8192 2 2 8192 2 2 2 : 0 0
size-4096(DMA) 0 0 4096 0 0 1 : 60 30
size-4096 182 182 4096 182 182 1 : 60 30
size-2048(DMA) 0 0 2048 0 0 1 : 60 30
size-2048 108 108 2048 54 54 1 : 60 30
size-1024(DMA) 0 0 1024 0 0 1 : 124 62
size-1024 172 172 1024 43 43 1 : 124 62
size-512(DMA) 0 0 512 0 0 1 : 124 62
size-512 360 360 512 45 45 1 : 124 62
size-256(DMA) 0 0 256 0 0 1 : 252 126
size-256 165 165 256 11 11 1 : 252 126
size-128(DMA) 0 0 128 0 0 1 : 252 126
size-128 570 570 128 19 19 1 : 252 126
size-64(DMA) 0 0 64 0 0 1 : 252 126
size-64 722 1534 64 26 26 1 : 252 126
size-32(DMA) 0 0 64 0 0 1 : 252 126
size-32 11868 12390 64 210 210 1 : 252 126
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