Re: svntest and tmpfs slow as disk

[Jani Averbach <ja...@jaa.iki.fi>]

On 2004-02-17 12:52-0800, Blair Zajac wrote:
> Jani Averbach wrote:
> > 
> > On 2004-01-30 16:22-0800, Blair Zajac wrote:
> > 
> > > I'm now running svntest on a dual 3.06 Ghz system with 2 Gbytes of
> > > RAM and using the ramdisk, but it's just as fast as running
> > > the tests to disk.  Has anybody else seen this.
> > 
> > I have definetly seen that with 2.6.x kernels and
> > __with ra_dav__. With 2.6.x kernels the tests almost stalled (dual
> > amd64 system, 2G RAM), and take _a_lot_of_ time. With ordinary
> > hd-based fs it will finish just fine.  With 2.4.x kernels the tests are
> > behaving normally with tmpfs vs. hd-based fs.

Well, I think that I have found a reason for that.

It seems that my system is running out of randomness (/dev/random is
empty, the server is unattended), and that lack of randomness is
blocking the test suite. After I have switched apr to use
/dev/hw_random, everything seems to run with 2.6 kernel as fast as (or
faster) than with 2.4 kernel.

BR, Jani

-- 
Jani Averbach


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