Re: [PERFORM] Estimating hot data size

2011-02-16 Thread Greg Smith
Chris Hoover wrote: Basically, I'm using the sum(heap_blks_read + idx_blks_read) from pg_statio_all_tables, and diffing the numbers over a period of time (1 hour at least). Is this a fair estimate? The reason for doing this is we are looking at new server hardware, and I want to try and get

Re: [PERFORM] Estimating hot data size

2011-02-16 Thread Tomas Vondra
Dne 16.2.2011 21:51, Chris Hoover napsal(a): > All, > > I'm trying to estimate the size of my hot data set, and wanted to get > some validation that I'm doing this correctly. > > Basically, I'm using the sum(heap_blks_read + idx_blks_read) from > pg_statio_all_tables, and diffing the numbers over