Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util
cciss/c0d0 0.00 4.08 177.55 140.82 1461.22 1159.18 730.61 579.59 8.23 2.33 7.29 3.20 101.94
cciss/c0d0 0.00 4.08 177.55 140.82 1461.22 1159.18 730.61 579.59 8.23 2.33 7.29 3.20 101.94
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util
cciss/c0d0 0.00 0.00 153.61 0.00 1245.36 0.00 622.68 0.00 8.11 1.29 8.46 6.68 102.58
cciss/c0d0 0.00 0.00 153.61 0.00 1245.36 0.00 622.68 0.00 8.11 1.29 8.46 6.68 102.58
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util
cciss/c0d0 0.00 0.00 160.82 0.00 1303.09 0.00 651.55 0.00 8.10 1.25 7.72 6.41 103.09
cciss/c0d0 0.00 0.00 160.82 0.00 1303.09 0.00 651.55 0.00 8.10 1.25 7.72 6.41 103.09
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util
cciss/c0d0 0.00 0.00 131.63 0.00 1069.39 0.00 534.69 0.00 8.12 1.13 8.61 7.68 101.12
cciss/c0d0 0.00 0.00 131.63 0.00 1069.39 0.00 534.69 0.00 8.12 1.13 8.61 7.68 101.12
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util
cciss/c0d0 0.00 1.02 129.59 6.12 1044.90 138.78 522.45 69.39 8.72 1.15 8.34 7.51 101.94
cciss/c0d0 0.00 1.02 129.59 6.12 1044.90 138.78 522.45 69.39 8.72 1.15 8.34 7.51 101.94
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util
cciss/c0d0 0.00 0.00 158.59 0.00 1292.93 0.00 646.46 0.00 8.15 1.23 7.79 6.34 100.61
cciss/c0d0 0.00 0.00 158.59 0.00 1292.93 0.00 646.46 0.00 8.15 1.23 7.79 6.34 100.61
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util
cciss/c0d0 0.00 0.00 221.88 6.25 1866.67 50.00 933.33 25.00 8.40 1.64 7.23 4.57 104.17
cciss/c0d0 0.00 0.00 221.88 6.25 1866.67 50.00 933.33 25.00 8.40 1.64 7.23 4.57 104.17
log.txt
[root@vm1 ~]# awk '/cciss\/c0d0/{sum=sum+$NF;count=count+1}END{print sum/count}' log.txt
86.1766
你的磁盘平均在86%，已经非常繁忙了
86.1766
你的磁盘平均在86%，已经非常繁忙了
[root@test ~]# cat 5.sh
/etc/init.d/syslog stop
echo 1 > /proc/sys/vm/block_dump
sleep 60
dmesg | awk '/(READ|WRITE|dirtied)/ {process[$1]++} END {for (x in process) \
print process[x],x}' |sort -nr |awk '{print $2 " " $1}' | head -n 10
/etc/init.d/syslog stop
echo 1 > /proc/sys/vm/block_dump
sleep 60
dmesg | awk '/(READ|WRITE|dirtied)/ {process[$1]++} END {for (x in process) \
print process[x],x}' |sort -nr |awk '{print $2 " " $1}' | head -n 10
echo 0 > /proc/sys/vm/block_dump
/etc/init.d/syslog start
/etc/init.d/syslog start
[root@test ~]# sh 5.sh
Shutting down kernel logger: [FAILED]
Shutting down system logger: [FAILED]
kjournald(4204): 484
httpd(20713): 109
httpd(20668): 96
httpd(20674): 86
httpd(15782): 77
httpd(16293): 68
httpd(20708): 66
httpd(15858): 59
httpd(20612): 57
httpd(15832): 57
Starting system logger: [ OK ]
Starting kernel logger: [ OK ]
被抓出来了。httpd kjournald 进程的问题
本文转自 liang3391 51CTO博客，原文链接:
http://blog.51cto.com/liang3391/660596
