Can you measure IO on a file?

[Capoerista]

Hi Guy's

We are trying to tune application performance on AIX 5.2 . Is it possible to measure amount of IO going on for a particular file. We know which filesystems are busiest, but not files. We want to split out the busiest files but want to do it less by hunch and more by measurement.

Thanks in advance

Adrian

 

[alexhu]

Does you application not have some sort of statistics gatherer ?

Alex

 

[Capoerista]

Hi Alex,

Unfortunately not, it's and old 3GL C-ISAM leviathan. Also a large number of users can access files remotely via ODBC. We can log which tables are used via ODBC, but it still does not give us an idea of the amount of IO being generated.

Adrian

 

[sbix]

man filemon

 

[kHz]

filemon
fileplace