Tom Lane <[email protected]> wrote:

> Takahiro Itagaki <[email protected]> writes:
> > Oops. There might be two solutions for the issue:
> >   1. Use explicit locks. The lock primitive will be pthread_mutex for
> >      multi-threaded implementations or semaphore for multi-threaded ones.
> >   2. Use per-thread log files.
> >      File names would be "pgbench_log.<main-process-id>.<thread-id>".
> 
> I think #1 is out of the question, as the synchronization overhead will
> do serious damage to the whole point of having a multithreaded pgbench.
> #2 might be a reasonable idea.

Ok, I'll go for #2.

Regards,
---
Takahiro Itagaki
NTT Open Source Software Center



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