Re: Problem compiling 2.1.111,112 on Alpha/RH5.1

Chris Adams (
Thu, 30 Jul 1998 08:56:17 -0500 (CDT)

Once upon a time, Chris Wedgwood wrote
> On Wed, Jul 29, 1998 at 02:23:06PM -0500, Chris Adams wrote:
> > Yep. It compiled, booted, and is running now (I just _had_ to see it
> > boot with the boot logo! :-) ).
> Out of interested, can to tell me if there is any noticeable speed
> difference in buffer cache access between 2.0.x and 2.1.x on the
> alpha? (hdparm -T /dev/sda or something similar should be fine, run
> it a few times and ignore the first run).
> I'm seeing 2.1.x as being about 15% slower which seems a little odd.

I ran it a couple of times, then ran it 5 times and averaged the runs.

2.0.32: 8.95 MB/sec
2.1.112: 9.18 MB/sec

That puts 2.1.112 about 2.5% faster than 2.0.32 on buffer cache reads on
my system, a 166 MHz UDB with 56 MB RAM.

Chris Adams -
System Administrator - Renaissance Internet Services
I don't speak for anybody but myself - that's enough trouble.

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