Diskreads-Cache always 0.00%

Posted in 2004

Manuela Biel — Mon, 2 Feb 2004 10:31:50 +0100 — source: Usenet: comp.databases.informix

Hi, Informix 9.4 RedHat 2.4.20 since a few days without any relevant changes in the informix-configuration, my diskread-Chace is always zero. Example: (onstat -p) Profile dskreads pagreads bufreads %cached dskwrits pagwrits bufwrits %cached 803475051 834961363 238511699 0.00 5432438 16547952 67235401 91.92 Any ideas? Thanks in advance! Ciao Manu

↪ replying to Manuela Biel

Paul Watson — Mon, 02 Feb 2004 09:46:53 +0000 — source: Usenet: comp.databases.informix

run onstat -z you've probably wrap the 2G on the buf reads Manuela Biel wrote: > > Hi, > > Informix 9.4 > RedHat 2.4.20 > > since a few days without any relevant changes in the informix-configuration, > my diskread-Chace is always zero. > > Example: (onstat -p) > > Profile > dskreads pagreads bufreads %cached dskwrits pagwrits bufwrits %cached > 803475051 834961363 238511699 0.00 5432438 16547952 67235401 91.92 > > Any ideas? > > Thanks in advance! > > Ciao > Manu -- Paul Watson # Oninit Ltd # Growing old is mandatory Tel: +44 1436 672201 # Growing up is optional Fax: +44 1436 678693 # Mob: +44 7818 003457 # www.oninit.com #

↪ replying to Paul Watson

Manuela Biel — Mon, 2 Feb 2004 11:34:08 +0100 — source: Usenet: comp.databases.informix

Hi Paul, thanks for your answer. I don't know the -z flag. What does this result mean? IBM Informix Dynamic Server Version 9.40.UC2X3 -- On-Line -- Up 18 days 11:00:35 -- 1609260 Kbytes Thanks! Manuela "Paul Watson" <paul@oninit.com> schrieb im Newsbeitrag news:401E1C8D.6AAEFDBC@oninit.com... > run onstat -z you've probably wrap the 2G on the buf reads > > Manuela Biel wrote: > > > > Hi, > > > > Informix 9.4 > > RedHat 2.4.20 > > > > since a few days without any relevant changes in the informix-configuration, > > my diskread-Chace is always zero. > > > > Example: (onstat -p) > > > > Profile > > dskreads pagreads bufreads %cached dskwrits pagwrits bufwrits %cached > > 803475051 834961363 238511699 0.00 5432438 16547952 67235401 91.92 > > > > Any ideas? > > > > Thanks in advance! > > > > Ciao > > Manu > > -- > Paul Watson # > Oninit Ltd # Growing old is mandatory > Tel: +44 1436 672201 # Growing up is optional > Fax: +44 1436 678693 # > Mob: +44 7818 003457 # > www.oninit.com #

↪ replying to Paul Watson

Manuela Biel — Mon, 2 Feb 2004 12:31:21 +0100 — source: Usenet: comp.databases.informix

Hi Paul, now, it seems to work. But I don't know, why! Thanks for your Anwser! bye Manu "Paul Watson" <paul@oninit.com> schrieb im Newsbeitrag news:401E1C8D.6AAEFDBC@oninit.com... > run onstat -z you've probably wrap the 2G on the buf reads > > Manuela Biel wrote: > > > > Hi, > > > > Informix 9.4 > > RedHat 2.4.20 > > > > since a few days without any relevant changes in the informix-configuration, > > my diskread-Chace is always zero. > > > > Example: (onstat -p) > > > > Profile > > dskreads pagreads bufreads %cached dskwrits pagwrits bufwrits %cached > > 803475051 834961363 238511699 0.00 5432438 16547952 67235401 91.92 > > > > Any ideas? > > > > Thanks in advance! > > > > Ciao > > Manu > > -- > Paul Watson # > Oninit Ltd # Growing old is mandatory > Tel: +44 1436 672201 # Growing up is optional > Fax: +44 1436 678693 # > Mob: +44 7818 003457 # > www.oninit.com #

↪ replying to Manuela Biel

Paul Watson — Mon, 02 Feb 2004 12:31:35 +0000 — source: Usenet: comp.databases.informix

The bufreads wrap around when they reach 2G [other values do as well but you will hit bufreads first] and depending on the version you get negative caches or 0% Cheers Paul Manuela Biel wrote: > > Hi Paul, > > now, it seems to work. But I don't know, why! > Thanks for your Anwser! > > bye > Manu > > "Paul Watson" <paul@oninit.com> schrieb im Newsbeitrag > news:401E1C8D.6AAEFDBC@oninit.com... > > run onstat -z you've probably wrap the 2G on the buf reads > > > > Manuela Biel wrote: > > > > > > Hi, > > > > > > Informix 9.4 > > > RedHat 2.4.20 > > > > > > since a few days without any relevant changes in the > informix-configuration, > > > my diskread-Chace is always zero. > > > > > > Example: (onstat -p) > > > > > > Profile > > > dskreads pagreads bufreads %cached dskwrits pagwrits bufwrits %cached > > > 803475051 834961363 238511699 0.00 5432438 16547952 67235401 91.92 > > > > > > Any ideas? > > > > > > Thanks in advance! > > > > > > Ciao > > > Manu > > > > -- > > Paul Watson # > > Oninit Ltd # Growing old is mandatory > > Tel: +44 1436 672201 # Growing up is optional > > Fax: +44 1436 678693 # > > Mob: +44 7818 003457 # > > www.oninit.com # -- Paul Watson # Oninit Ltd # Growing old is mandatory Tel: +44 1436 672201 # Growing up is optional Fax: +44 1436 678693 # Mob: +44 7818 003457 # www.oninit.com #

Related threads

Glossary

onstat