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请看upload达52 wa:49 连续几分钟后upload降为3-20(一时高一时低),但页面响应速度还是有点慢.
重启apache,情况差不多,再重启mysql.upload降1-2,并稳定在1-2,页面响应速度有提高,但不是很明显
以下是一些输出,请帮忙看看, 谢谢.
另有一点须向大家说明:
这个服务器一般数据库都在2-5万条记录左右, 有6个表记录较多20万左右,另有一个表40多万记录,页面全部用php缓存,2个小时过期,php随访问更新. 搜索还是直接在数据库中进行.
[root@www upload]# top
top - 16:18:56 up 13:54, 1 user, load average: 52.28, 27.38, 14.13
Tasks: 401 total, 2 running, 399 sleeping, 0 stopped, 0 zombie
Cpu(s): 36.4% us, 7.5% sy, 0.0% ni, 5.6% id, 49.9% wa, 0.1% hi, 0.6% si
Mem: 2056400k total, 2041444k used, 14956k free, 7424k buffers
Swap: 2032212k total, 465092k used, 1567120k free, 392084k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
17600 mysql 16 0 510m 62m 1908 S 36.2 3.1 0:09.03 mysqld
17529 mysql 16 0 510m 62m 1908 S 23.6 3.1 0:35.59 mysqld
17525 mysql 15 0 510m 62m 1908 D 21.0 3.1 0:33.31 mysqld
17523 mysql 15 0 510m 62m 1908 D 11.0 3.1 0:16.13 mysqld
17619 mysql 16 0 510m 62m 1908 S 6.8 3.1 0:04.48 mysqld
17729 nobody 16 0 130m 7568 2892 S 3.9 0.4 0:00.32 httpd
14647 nobody 15 0 132m 9276 3092 S 3.6 0.5 0:17.73 httpd
17554 nobody 16 0 131m 7880 2856 S 3.2 0.4 0:00.15 httpd
17434 nobody 16 0 131m 8268 2940 S 2.9 0.4 0:01.19 httpd
17597 nobody 16 0 130m 7664 2932 S 2.6 0.4 0:00.44 httpd
17655 nobody 15 0 130m 7456 2904 S 2.6 0.4 0:00.15 httpd
13562 nobody 15 0 132m 8676 3096 S 2.3 0.4 0:25.37 httpd
17570 nobody 15 0 130m 7420 2912 S 2.3 0.4 0:00.22 httpd
17663 nobody 15 0 130m 7584 2904 S 2.3 0.4 0:00.65 httpd
8231 nobody 15 0 137m 13m 3104 S 1.9 0.7 0:35.93 httpd
16702 nobody 15 0 138m 7928 3084 D 1.9 0.4 0:06.69 httpd
17609 mysql 16 0 510m 62m 1908 S 1.9 3.1 0:02.81 mysqld
17644 nobody 15 0 129m 6704 2864 S 1.9 0.3 0:00.39 httpd
17693 nobody 16 0 130m 7580 2884 S 1.9 0.4 0:00.49 httpd
17701 nobody 16 0 129m 6696 2860 S 1.9 0.3 0:00.21 httpd
17714 nobody 17 0 130m 7540 2880 S 1.9 0.4 0:00.26 httpd
17716 nobody 15 0 130m 6780 2812 S 1.9 0.3 0:00.07 httpd
57 root 15 0 0 0 0 S 1.6 0.0 1:17.30 kswapd0
14360 nobody 15 0 132m 9088 3092 S 1.6 0.4 0:25.24 httpd
14451 nobody 15 0 132m 9816 3100 S 1.6 0.5 0:25.93 httpd
16692 nobody 15 0 132m 8444 3036 D 1.6 0.4 0:03.62 httpd
17499 nobody 16 0 131m 8228 2968 S 1.6 0.4 0:00.79 httpd
17710 nobody 15 0 130m 6760 2804 S 1.6 0.3 0:00.06 httpd
16739 nobody 15 0 137m 11m 3088 S 1.3 0.6 0:06.14 httpd
16878 nobody 15 0 131m 8220 2992 D 1.3 0.4 0:04.08 httpd
17603 mysql 16 0 510m 62m 1908 D 1.3 3.1 0:02.70 mysqld
17604 mysql 15 0 510m 62m 1908 D 1.3 3.1 0:01.92 mysqld
17641 nobody 15 0 130m 7420 2876 S 1.3 0.4 0:00.27 httpd
17524 mysql 15 0 510m 62m 1908 D 1.0 3.1 0:17.86 mysqld
17535 mysql 16 0 510m 62m 1908 D 1.0 3.1 0:15.45 mysqld
17552 mysql 16 0 510m 62m 1908 D 1.0 3.1 0:07.65 mysqld
17613 mysql 16 0 510m 62m 1908 D 1.0 3.1 0:01.74 mysqld
17616 mysql 16 0 510m 62m 1908 D 1.0 3.1 0:03.08 mysqld
17696 mysql 15 0 510m 62m 1908 D 1.0 3.1 0:00.40 mysqld
8289 nobody 15 0 136m 9752 3100 S 0.6 0.5 0:32.91 httpd
8413 nobody 15 0 137m 13m 3100 S 0.6 0.7 0:31.76 httpd
16864 nobody 15 0 131m 6276 2988 S 0.6 0.3 0:04.98 httpd
vmstat
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
1 21 464712 18940 6128 345148 4 6 87 62 110 138 18 4 72 5
[root@www upload]# vmstat
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
18 24 464680 24068 5484 315288 4 6 87 62 110 138 18 4 72 5
[root@www upload]# vmstat -f
17804 forks
[root@www upload]# vmstat -d
disk- ------------reads------------ ------------writes----------- -----IO------
total merged sectors ms total merged sectors ms cur sec
ram0 0 0 0 0 0 0 0 0 0 0
ram1 0 0 0 0 0 0 0 0 0 0
ram2 0 0 0 0 0 0 0 0 0 0
ram3 0 0 0 0 0 0 0 0 0 0
ram4 0 0 0 0 0 0 0 0 0 0
ram5 0 0 0 0 0 0 0 0 0 0
ram6 0 0 0 0 0 0 0 0 0 0
ram7 0 0 0 0 0 0 0 0 0 0
ram8 0 0 0 0 0 0 0 0 0 0
ram9 0 0 0 0 0 0 0 0 0 0
ram10 0 0 0 0 0 0 0 0 0 0
ram11 0 0 0 0 0 0 0 0 0 0
ram12 0 0 0 0 0 0 0 0 0 0
ram13 0 0 0 0 0 0 0 0 0 0
ram14 0 0 0 0 0 0 0 0 0 0
ram15 0 0 0 0 0 0 0 0 0 0
sda 903388 202063 24927832 21702773 794221 1615747 19332956 149519568 0 7027
sdb 432177 27841 10123062 5683550 324482 358113 5460864 45086397 0 4098
md0 0 0 0 0 0 0 0 0 0 0
[root@www upload]# vmstat -a
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free inact active si so bi bo in cs us sy id wa
0 14 464632 15836 150448 1762068 5 6 88 62 110 138 18 4 72 5
[root@www upload]# vmstat -s
2056400 total memory
2034724 used memory
1724444 active memory
184576 inactive memory
21676 free memory
9436 buffer memory
351140 swap cache
2032212 total swap
464632 used swap
1567580 free swap
3647199 non-nice user cpu ticks
11917 nice user cpu ticks
856742 system cpu ticks
14455846 idle cpu ticks
1060786 IO-wait cpu ticks
3943 IRQ cpu ticks
35465 softirq cpu ticks
17759119 pages paged in
12411758 pages paged out
232254 pages swapped in
276198 pages swapped out
65073935 interrupts
27761945 CPU context switches
1150223087 boot time
17814 forks
[root@www upload]# vmstat -m
Cache Num Total Size Pages
fib6_nodes 5 61 64 61
ip6_dst_cache 4 10 384 10
ndisc_cache 1 15 256 15
rawv6_sock 6 8 1024 4
udpv6_sock 0 0 1024 4
tcpv6_sock 3 4 1792 2
ip_fib_alias 10 119 32 119
ip_fib_hash 10 61 64 61
ip_conntrack_expect 3 15 256 15
ip_conntrack 987 1442 512 7
dm_tio 0 0 24 156
dm_io 0 0 32 119
avtab_node 12874 12960 40 96
ext3_inode_cache 10627 19964 840 4
ext3_xattr 1390 2340 88 45
journal_handle 216 405 48 81
journal_head 692 2025 88 45
revoke_table 14 225 16 225
revoke_record 16 119 32 119
scsi_cmd_cache 125 147 512 7
sgpool-128 32 32 4096 1
sgpool-64 36 40 2048 2
sgpool-32 92 92 1024 4
sgpool-16 120 120 512 8
sgpool-8 306 330 256 15
unix_sock 222 235 768 5
ip_mrt_cache 0 0 128 31
tcp_tw_bucket 269 270 256 15
tcp_bind_bucket 6 119 32 119
tcp_open_request 24 31 128 31
inet_peer_cache 1 31 128 31
secpath_cache 0 0 256 15
xfrm_dst_cache 0 0 384 10
ip_dst_cache 598 1060 384 10
arp_cache 1 15 256 15
raw_sock 5 8 896 4
udp_sock 0 0 896 4
tcp_sock 217 310 1536 5
flow_cache 0 0 128 31
mqueue_inode_cache 1 4 896 4
isofs_inode_cache 0 0 616 6
hugetlbfs_inode_cache 1 6 608 6
ext2_inode_cache 0 0 736 5
ext2_xattr 0 0 88 45
dquot 0 0 224 17
eventpoll_pwq 0 0 72 54
Cache Num Total Size Pages
eventpoll_epi 0 0 256 15
kioctx 0 0 384 10
kiocb 0 0 256 15
dnotify_cache 1 96 40 96
fasync_cache 0 0 24 156
shmem_inode_cache 241 255 800 5
posix_timers_cache 0 0 184 21
uid_cache 5 61 64 61
cfq_pool 328 414 56 69
crq_pool 493 2484 72 54
deadline_drq 0 0 96 41
as_arq 0 0 112 35
blkdev_ioc 340 595 32 119
blkdev_queue 19 27 848 9
blkdev_requests 284 1200 264 15
biovec-(256) 256 256 4096 1
biovec-128 256 256 2048 2
biovec-64 324 324 1024 4
biovec-16 390 390 256 15
biovec-4 382 427 64 61
biovec-1 790 7875 16 225
bio 856 3348 128 31
file_lock_cache 191 275 160 25
sock_inode_cache 486 550 768 5
skbuff_head_cache 900 1280 384 10
sock 7 18 640 6
proc_inode_cache 719 1254 600 6
sigqueue 128 207 168 23
radix_tree_node 7332 7714 536 7
bdev_cache 11 20 768 5
mnt_cache 30 60 192 20
inode_cache 582 672 568 7
dentry_cache 10784 32048 240 16
filp 1416 1515 256 15
names_cache 53 53 4096 1
avc_node 443 1620 72 54
idr_layer_cache 64 70 528 7
buffer_head 3749 12420 88 45
mm_struct 305 322 1152 7
vm_area_struct 20846 22066 176 22
fs_cache 309 427 64 61
files_cache 310 342 832 9
signal_cache 389 450 256 15
sighand_cache 332 354 2112 3
task_struct 389 404 1984 2
anon_vma 843 1092 24 156
Cache Num Total Size Pages
shared_policy_node 0 0 56 69
numa_policy 35 225 16 225
size-131072(DMA) 0 0 131072 1
size-131072 0 0 131072 1
size-65536(DMA) 0 0 65536 1
size-65536 0 0 65536 1
size-32768(DMA) 0 0 32768 1
size-32768 0 0 32768 1
size-16384(DMA) 0 0 16384 1
size-16384 0 0 16384 1
size-8192(DMA) 0 0 8192 1
size-8192 13 13 8192 1
size-4096(DMA) 0 0 4096 1
size-4096 876 876 4096 1
size-2048(DMA) 0 0 2048 2
size-2048 221 274 2048 2
size-1620(DMA) 0 0 1664 4
size-1620 47 48 1664 4
size-1024(DMA) 0 0 1024 4
size-1024 515 1032 1024 4
size-512(DMA) 0 0 512 8
size-512 362 1120 512 8
size-256(DMA) 0 0 256 15
size-256 1550 1800 256 15
size-128(DMA) 0 0 128 31
size-128 14411 49538 128 31
size-64(DMA) 0 0 64 61
size-64 10132 21655 64 61
size-32(DMA) 0 0 32 119
size-32 6922 14042 32 119
kmem_cache 135 135 256 15 |
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