Hi all.
I'm writing a performance analysis utility that uses the snapshot
monitor C API to get statistics in the connection level. It seems that
the way I use the snapshot monitor is very inefficient : each snapshot
takes a few dozens of milliseconds and overall it consumes a lot of
CPU.
Is there a way to configure and optimize the snapshot utility ?
Is there an alternative to the snapshot monitor API ?
When working with Oracle, I'm using Oracle DMA to access the shared
memory myself, is there a way (not necessarily documented or
supported) to access DB2 shared memory and extract these statistics ?
TIA,
Yaron
2  2110 
Yaron Goldstein wrote:
Hi all.
I'm writing a performance analysis utility that uses the snapshot
monitor C API to get statistics in the connection level. It seems that
the way I use the snapshot monitor is very inefficient : each snapshot
takes a few dozens of milliseconds and overall it consumes a lot of
CPU.
Is there a way to configure and optimize the snapshot utility ?
Is there an alternative to the snapshot monitor API ?
When working with Oracle, I'm using Oracle DMA to access the shared
memory myself, is there a way (not necessarily documented or
supported) to access DB2 shared memory and extract these statistics ?
Take a look at db2pd and see whether is has what you need.
db2pd also reads memory directly.
Cheers
Serge
--
Serge Rielau
DB2 Solutions Development
IBM Toronto Lab
Hi Serge,
thanks for you quick reply.
Is there a C/C++ API to db2pd ?
I couldn't find one.
10x
Yaron
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