topic Re: sar vs perfmon in Operating System - Linux

sar vs perfmon

Louis Coilliot — Tue, 20 Jun 2006 05:28:58 GMT

Hello, I try to get with sar the equivalent I/O performance statistics that I get from perfmon on MS Windows with those counters:
Physical Disk
-> Reads/second
-> Writes/second

In sar, is it:
- rtps and wtps (Total number of read and write requests per second issued to physical devices)

- bread/s and bwrtn/s (Total amount of data read and written to devices in blocks per second)

- none of the above ?

Let me know, thanks.

Louis

Re: sar vs perfmon

Steven E. Protter — Tue, 20 Jun 2006 06:14:40 GMT

Shalom Louis,

sar -b

or/and

sar -B (paging stats quite important)

sar -d

# seems best to me.

SEP

Re: sar vs perfmon

Louis Coilliot — Tue, 20 Jun 2006 07:35:43 GMT

I already now that I get the informations with sar -b

My problem is how to interpret the data provided, in comparison to perfmon:
Physical Disk
-> Reads/second
-> Writes/second

Re: sar vs perfmon

Ivan Ferreira — Tue, 20 Jun 2006 09:47:41 GMT

That would be:

- rtps and wtps (Total number of read and write requests per second issued to physical devices)