Re: TPC-C benchmark used standard RH kernel

[William Lee Irwin III]

On Thu, Sep 19, 2002 at 02:27:22PM -0500, Bond, Andrew wrote:
> This isn't as recent as I would like, but it will give you an idea.
> Top 75 from readprofile.  This run was not using bigpages though.
> Andy

> 00000000 total                                      7872   0.0066
> c0105400 default_idle                               1367  21.3594
> c012ea20 find_vma_prev                               462   2.2212
> c0142840 create_bounce                               378   1.1250
> c0142540 bounce_end_io_read                          332   0.9881
> c0197740 __make_request                              256   0.1290
> c012af20 zap_page_range                              231   0.1739
> c012e9a0 find_vma                                    214   1.6719
> c012e780 avl_rebalance                               160   0.4762

Looks like you're doing a lot of mmapping or faulting requiring VMA
lookups, or the number of VMA's associated with a task makes the
various VMA manipulations extremely expensive.

Can you dump /proc/pid/maps on some of these processes?

Thanks,
Bill