Re: [HACKERS] Add pgbench option: CHECKPOINT before starting benchmark

2013-08-30 Thread Tom Lane
KONDO Mitsumasa writes: > My patches option difinition is here. > [mitsu-ko@localhost pgbench]$ ./pgbench --help > ~ > -N, --no-checkpoint do not run CHECKPOINT after initialization > ~ > In latest commited pgbench, -N is "--skip-some-updates skip updates of > pgbench_tellers and pgbench_bra

Re: [HACKERS] Add pgbench option: CHECKPOINT before starting benchmark

2013-08-30 Thread Fabien COELHO
My patches option difinition is here. [mitsu-ko@localhost pgbench]$ ./pgbench --help ~ -N, --no-checkpoint do not run CHECKPOINT after initialization ~ In latest commited pgbench, -N is "--skip-some-updates skip updates of pgbench_tellers and pgbench_branches". But I cannot understand why

Re: [HACKERS] Add pgbench option: CHECKPOINT before starting benchmark

2013-08-30 Thread Mark Kirkwood
On 30/08/13 19:54, KONDO Mitsumasa wrote: > Hi, > > I add checkpoint option to pgbench. > > pgbench is simple and useful benchmark for every user. However, result of > benchmark greatly changes by some situations which are in executing > checkpoint, > number of dirty buffers in share_buffers, an

[HACKERS] Add pgbench option: CHECKPOINT before starting benchmark

2013-08-30 Thread KONDO Mitsumasa
Hi, I add checkpoint option to pgbench. pgbench is simple and useful benchmark for every user. However, result of benchmark greatly changes by some situations which are in executing checkpoint, number of dirty buffers in share_buffers, and so on. For such a problem, it is custom to carry out a ch