DUMPSRV - EXCP count high
Hi experts, In one of our Test system the DUMPSRV's CPU and EXCP counts are really high. Are there any ways to reduce the EXCP count since the system performance is really slow. I took the below information after analysing each EXCP and CPU time and found DUMPSRV had really a high values interms of EXCP-Cnt and CPU -time. Any thoughts or suggestions will help me in analysing more. Please guide or provide me a reference to analyse more on the below. If anyone can provide me a diagnostic guide or reference online that will be really helpful JOBNAME CPU% ASID ASIDX EXCP-Cnt CPU-Time DUMPSRV 0.0050005 7109245 1014.58 Also, I was able to see that SYSLOGD1 status shows as "PROT" . I was trying to search for a similar problems in google, but I could'nt get similar HITS to analyse. SYSLOGD1 0.00 31 001F 237 5.18PROT Regards, Jags -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: DUMPSRV - EXCP count high
As DUMPSRV is system task, the CPU-TIME should be the accumulate value since IPL.. So, depends on how long it has been running. On another hand, simply calculate the per EXCP using CPU second, result in 0.143ms/EXCP, looks good to me. I have no idea which column in SDSF with mentioned value "PROT'? On Fri, Sep 2, 2011 at 11:40 AM, jagadishan perumal wrote: > Hi experts, > > In one of our Test system the DUMPSRV's CPU and EXCP counts are really > high. > Are there any ways to reduce the EXCP count since the system performance is > really slow. I took the below information after analysing each EXCP and CPU > time and found DUMPSRV had really a high values interms of EXCP-Cnt and CPU > -time. > > Any thoughts or suggestions will help me in analysing more. Please guide or > provide me a reference to analyse more on the below. If anyone can provide > me a diagnostic guide or reference online that will be really helpful > > JOBNAME CPU% ASID ASIDX EXCP-Cnt CPU-Time > DUMPSRV 0.0050005 7109245 1014.58 > > Also, I was able to see that SYSLOGD1 status shows as "PROT" . I was trying > to search for a similar problems in google, but I could'nt get similar HITS > to analyse. > > SYSLOGD1 0.00 31 001F 237 5.18PROT > > Regards, > Jags > > -- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO > Search the archives at http://bama.ua.edu/archives/ibm-main.html > -- Cobe Xu Best Regards --- z/OS Performance & Capacity Analyst z/OS System Programmer Email: cob...@gmail.com --- -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: DUMPSRV - EXCP count high
"I have no idea which column in SDSF with mentioned value "PROT'" Apology for not being more.Its the Status Column. On Fri, Sep 2, 2011 at 9:29 AM, Cobe Xu wrote: > As DUMPSRV is system task, the CPU-TIME should be the accumulate value > since > IPL.. > So, depends on how long it has been running. > On another hand, simply calculate the per EXCP using CPU second, result in > 0.143ms/EXCP, looks good to me. > > I have no idea which column in SDSF with mentioned value "PROT'? > On Fri, Sep 2, 2011 at 11:40 AM, jagadishan perumal > wrote: > > > Hi experts, > > > > In one of our Test system the DUMPSRV's CPU and EXCP counts are really > > high. > > Are there any ways to reduce the EXCP count since the system performance > is > > really slow. I took the below information after analysing each EXCP and > CPU > > time and found DUMPSRV had really a high values interms of EXCP-Cnt and > CPU > > -time. > > > > Any thoughts or suggestions will help me in analysing more. Please guide > or > > provide me a reference to analyse more on the below. If anyone can > provide > > me a diagnostic guide or reference online that will be really helpful > > > > JOBNAME CPU% ASID ASIDX EXCP-Cnt CPU-Time > > DUMPSRV 0.0050005 7109245 1014.58 > > > > Also, I was able to see that SYSLOGD1 status shows as "PROT" . I was > trying > > to search for a similar problems in google, but I could'nt get similar > HITS > > to analyse. > > > > SYSLOGD1 0.00 31 001F 237 5.18PROT > > > > Regards, > > Jags > > > > -- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO > > Search the archives at http://bama.ua.edu/archives/ibm-main.html > > > > > > -- > Cobe Xu > > Best Regards > --- > z/OS Performance & Capacity Analyst > z/OS System Programmer > Email: cob...@gmail.com > --- > > -- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO > Search the archives at http://bama.ua.edu/archives/ibm-main.html > -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: DUMPSRV - EXCP count high
I suspect the OP has the cart before the horse. DUMPSRV current CPU utilization is zero, but has accumulated CPU service and I/O's. This tells me it has processed a few dumps. Stop the system from dumping and DUMPSRV has nothing to do. I'd be looking to resolve the cause for the presumed dump activity instead of focusing on a symptom (DUMPSRV is doing work!). Status of PROT in SDSF means that z/OS has assigned a 'protected' attribute to that work unit (usually APPC or OMVS transactions). You need to specify the 'PROTECTED' keyword on various JES2 commands to get them to operate against those tasks, because you shouldn't really be using JES2 commands to manipulate them. Cheers, Ant. Northern Territory Government of Australia -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On Behalf Of Cobe Xu Sent: Friday, 2 September 2011 1:30 PM To: IBM-MAIN@bama.ua.edu Subject: Re: DUMPSRV - EXCP count high As DUMPSRV is system task, the CPU-TIME should be the accumulate value since IPL.. So, depends on how long it has been running. On another hand, simply calculate the per EXCP using CPU second, result in 0.143ms/EXCP, looks good to me. I have no idea which column in SDSF with mentioned value "PROT'? On Fri, Sep 2, 2011 at 11:40 AM, jagadishan perumal wrote: > Hi experts, > > In one of our Test system the DUMPSRV's CPU and EXCP counts are really > high. > Are there any ways to reduce the EXCP count since the system > performance is really slow. I took the below information after > analysing each EXCP and CPU time and found DUMPSRV had really a high > values interms of EXCP-Cnt and CPU -time. > > Any thoughts or suggestions will help me in analysing more. Please > guide or provide me a reference to analyse more on the below. If > anyone can provide me a diagnostic guide or reference online that > will be really helpful > > JOBNAME CPU% ASID ASIDX EXCP-Cnt CPU-Time > DUMPSRV 0.0050005 7109245 1014.58 > > Also, I was able to see that SYSLOGD1 status shows as "PROT" . I was > trying to search for a similar problems in google, but I could'nt get > similar HITS to analyse. > > SYSLOGD1 0.00 31 001F 237 5.18PROT > > Regards, > Jags > > -- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO > Search the archives at http://bama.ua.edu/archives/ibm-main.html > -- Cobe Xu Best Regards --- z/OS Performance & Capacity Analyst z/OS System Programmer Email: cob...@gmail.com --- -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
