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Home -> Community -> Mailing Lists -> Oracle-L -> RE: OT : kernel using 75% of CPU
OOOOOOOOOOOH yea. Looks like your machinie is awful darn busy !
Lisa Koivu
Certified MOnkey and DBA
Ft. Lauderdale, FL, USA
-----Original Message-----
From: Jerry C [SMTP:usidba_at_yahoo.com] Sent: Tuesday, August 28, 2001 4:01 PM To: Multiple recipients of list ORACLE-LSubject: Re: OT : kernel using 75% of CPU
Thanks for the reply, Chris.
I'm a bit ashamed, being as old as I am, that I don't have a better grasp on swapping. I initially thought maybe it was a swap problem also, but top shows 0.0% swap. I thought I had also checked vmstat earlier, but yikes:
csuaor46> csuaor46> vmstat 15 20
procs memory page disk faults cpu
r b w swap free re mf pi po fr de sr s6 s1 s1 s5 in sy cs us sy id
2 0 0 15352 14472 68 1513 14 227 953 56488 260 0 2 2 0 638 78 933 25 24 50
11 0 0 6240696 63336 105 1759 41 246 1754 62760 545 0 8 8 0 1130 4956 773 22 76 1
11 0 0 6243360 62864 42 2594 82 236 2357 62760 757 0 7 6 0 1239 6960 987 40 60 1
8 0 0 6238120 62368 48 1746 25 260 3767 56488 1198 0 7 6 0 1052 4837 762 36 63 1
8 0 0 6239640 65200 33 1772 229 262 2092 62760 619 0 16 16 0 1232 5776 871 28 70 2
5 1 0 6247656 62440 57 2078 162 497 4025 62760 1308 0 15 15 0 1216 5808 815 21 75 4
5 0 0 6247776 63456 26 2445 149 285 2716 62760 2188 0 11 13 0 1164 6593 903 17 79 4
10 1 0 6240680 62648 80 3008 266 523 4527 62760 9226 0 25 25 0 1127 6725 884 22 76 2
6 0 0 6218216 68664 33 2251 66 105 1086 62760 377 0 6 6 0 847 20782 744 31 67 2
5 0 0 6201240 62840 9 1799 72 350 2490 62760 415 0 9 9 0 1207 8889 781 15 80 5
5 0 0 6199336 62760 6 1935 40 923 3564 62760 636 0 9 9 0 1373 5193 1082 21 69 10
10 0 0 6189552 63840 11 1476 33 722 3089 62760 548 0 9 8 0 1364 4530 957 21 77 2
10 0 0 6174304 70704 25 2705 86 759 6441 62760 1003 0 10 10 0 1258 5551 836 29 67 4
8 0 0 6186512 63824 51 1728 44 227 1413 56488 188 0 9 7 0 1319 4485 676 31 68 0
7 0 0 6196448 63064 49 1635 44 235 1179 62760 167 0 4 4 0 1207 4968 694 39 61 1
9 0 0 6188656 63872 11 1915 112 433 2065 62760 308 0 13 12 0 1140 4835 828 37 62 1
Do the pi (page in) and po (page out) statistics represent swapping?!
Thanks again,
Jerry
paging and swapping is the first thing that comes to mind, look at vmstat.
I think your question is completely on topic.
"Do not criticize someone until you walked a mile in their shoes, that way when you criticize them, you are a mile a way and have their shoes."
Christopher R. Spence
Oracle DBA
Phone: (978) 322-5744
Fax: (707) 885-2275
Fuelspot
73 Princeton Street
North, Chelmsford 01863
-----Original Message-----
From: Jerry C [mailto:usidba_at_yahoo.com]
Sent: Tuesday, August 28, 2001 11:20 AM
To: Multiple recipients of list ORACLE-L
Subject: OT : kernel using 75% of CPU
Hi there,
I have a Sun e4500, running Solaris 2.7 and Oracle 8.1.7.1.0. Everything looks normal from a database perspective, but when I run "top" it show the kernel being very hog-like:
load averages: 14.38, 15.18, 15.18 07:16:21126 processes: 118 sleeping, 4 running, 4 on cpu CPU states: 0.6% idle, 26.6% user, 72.8% kernel, 0.0% iowait, 0.0% swap Memory: 4096M real, 63M free, 216M swap in use, 5310M swap free
11068 oracle 1 0 0 2056K 1536K cpu0 0:02 1.53% top 11333 oracle 1 0 0 1150M 1124M cpu1 0:01 1.39% oracle
5944 oracle 1 40 0 1820M 1789M sleep 14:40 1.36% oracle
4797 root 1 50 0 2112K 1248K sleep 6:01 1.36% top
11346 oracle 1 0 0 110M 92M cpu0 0:01 1.26% oracle 11114 oracle 1 0 0 1009M 984M cpu1 0:00 0.66% oracle 11157 oracle 1 0 0 1009M 984M run 0:00 0.63% oracle 11368 oracle 1 33 0 1794M 1765M sleep 0:00 0.29% oracle 19558 oracle 1 60 0 1797M 1751M sleep 78:28 0.28% oracle 19554 oracle 1 60 0 1794M 1751M sleep 38:05 0.20% oracle 11366 oracle 1 55 0 1793M 1763M sleep 0:00 0.19% oracle 11292 oracle 1 26 2 2008K 1424K run 0:00 0.19% dsql
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