Hi everyone, I am getting MONWRITE data from my RHEL machines for measurement/accounting purposes. We take this data and it gets sent to two places: Performance Toolkit and z/OS (where we use MXG to produce a table).
At RHEL startup, this these commands are issued: modprobe appldata_os modprobe appldata_mem modprobe appldata_net_sum echo 1 > /proc/sys/appldata/timer echo 1 > /proc/sys/appldata/mem echo 1 > /proc/sys/appldata/os echo 1 > /proc/sys/appldata/net_sum echo 5000 > /proc/sys/appldata/interval Everything is by the book... but I see a big difference between my Monwrite-based monitor and RMF-PMS, top. The factor I see for Cache usage is way out off ...by a factor of 10. >From performance toolkit: Linux <--- Main ---> <--- High ---> Buffers Cache <-Space (MB)-> Userid<http://10.82.10.120:81/02DBAFE8/D2AC/HE.04.001> M_Total<http://10.82.10.120:81/02DBAFE8/D2AC/HE.04.011> %MUsed<http://10.82.10.120:81/02DBAFE8/D2AC/HE.04.019> H_Total<http://10.82.10.120:81/02DBAFE8/D2AC/HE.04.026> %HUsed<http://10.82.10.120:81/02DBAFE8/D2AC/HE.04.034> Shared<http://10.82.10.120:81/02DBAFE8/D2AC/HE.04.041> /CaFree<http://10.82.10.120:81/02DBAFE8/D2AC/HE.04.048> Used<http://10.82.10.120:81/02DBAFE8/D2AC/HE.04.057> >System< 1101 91.7 .0 .0 .0 111.1 573.4 VIPSERVP 184.1 87.1 .0 .0 .0 .5 50.6 But issuing top in RHEL yields a different number: top - 14:20:17 up 4 days, 23:09, 1 user, load average: 0.00, 0.00, 0.00 Tasks: 103 total, 1 running, 102 sleeping, 0 stopped, 0 zombie Cpu(s): 0.2%us, 0.2%sy, 0.0%ni, 99.2%id, 0.5%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 188560k total, 168208k used, 20352k free, 572k buffers Swap: 1304648k total, 355616k used, 949032k free, 9908k cached This is the only field that is off. This is the only machine where this parameter is off. I made one change to this server... and that was changing swappiness to a lower value: # echo vm.swappiness=10 >> /etc/sysctl.conf Any suggestions??? Thanks! David Diep Look out for those in need this winter. When the temperature or wind chill is 32?F or below, the District issues a Hypothermia Alert. For assistance during an Alert: call the Shelter Hotline at 1-800-535-7252 or 311. Or, send an email to the Shelter Hotline (up...@upo.org<mailto:up...@upo.org>). ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
