Re: OT : kernel using 75% of CPU

From: George Schlossnagle <george_at_omniti.com>
Date: Tue, 28 Aug 2001 11:24:57 -0700
Message-ID: <F001.0037A087.20010828110556@fatcity.com>

Are you running software raid 10 or software raid 5 on that box?
 
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• Original Message ----- <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black">From: Christopher Spence To: <A href="mailto:ORACLE-L_at_fatcity.com" title=ORACLE-L_at_fatcity.com>Multiple recipients of list ORACLE-L Sent: Tuesday, August 28, 2001 1:30 PM Subject: RE: OT : kernel using 75% of CPU

  Also
  noticed a fairly high load average, it appears you have a lot of processes   trying to get on the cpu, for a very long time, over the last 15 minutes you   have had 15 load average which is high.   <FONT color=#0000ff face=Arial
  size=2> 
 
 
 

  "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."
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    <FONT
    face=Tahoma size=2>-----Original Message-----From: Jerry C     [mailto:usidba_at_yahoo.com] Sent: Tuesday, August 28, 2001 11:20     AMTo: Multiple recipients of list ORACLE-LSubject: 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 cpuCPU     states:  0.6% idle, 26.6% user, 72.8% kernel,  0.0% iowait,      0.0% swapMemory: 4096M real, 63M free, 216M swap in use, 5310M swap     free
     
      PID USERNAME THR PRI NICE 

    SIZE   RES STATE   TIME    CPU 
    COMMAND 2286 oracle     1   
    0    0 1844M 1814M run     9:44 13.90% 
    oracle11068 oracle     1   
    0    0 2056K 1536K cpu0    0:02  1.53% 

    top11333 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%     top11346 oracle     1  
    0    0  110M   92M cpu0   
    0:01  1.26% oracle11114 oracle    
    1   0    0 1009M  984M cpu1   
    0:00  0.66% oracle11157 oracle    

    1   0    0 1009M  984M 
    run     0:00  0.63% oracle11368 
    oracle     1  33    0 1794M 1765M 
    sleep   0:00  0.29% oracle19558 
    oracle     1  60    0 1797M 1751M 

    sleep  78:28  0.28% oracle19554 oracle         1  60    0 1794M 1751M sleep  38:05  0.20%     oracle11366 oracle     1  55   
    0 1793M 1763M sleep   0:00  0.19% oracle11292     oracle     1  26    2 2008K 1424K
    run     0:00  0.19% dsql
     
    Any ideas on what I, as a lowly DBA,     would be able to check? It's a bit out of my area and I'm     stumped...
     
     
    Thanks!
     
    <FONT face="Courier New"
size=2>Jerry Received on Tue Aug 28 2001 - 13:24:57 CDT