Re: Buildworld fails in 5.1

On Wed, Jul 16, 2003 at 02:24:18PM +0000, Bosko Milekic wrote:
> 
> Same here, remove the -j N.  Right now there seem to be some
> dependencies which you fail against with a parallel build.

And it works here as well.

Building with -j highlights a problem I'm seeing on a sparc64 though
... the stock Ultra 5 hard drive is abysmally slow. Bonnie++ reports:

Version 1.93c       ------Sequential Output------ --Sequential Input- --Random-
Concurrency   1     -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
Caliban        512M     8  95  1995  10   927   5    15  94  1893   6  54.9  17
Latency              1878ms     445ms    2894ms    1074ms     272ms    5349ms
Version 1.93c       ------Sequential Create------ --------Random Create--------
Caliban             -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16   918  72  3008  82  2649  97   697  55  3112  89  2825  97
Latency              1665ms   51352us    2797us    1622ms     345ms    2241us


Compare this to a NFS mount (with options rw, intr, nfsv3, -w=32768,
-r=32768) on the same box (an Ultra 5) from my vinum fileserver:

Version 1.93c       ------Sequential Output------ --Sequential Input- --Random-
Concurrency   1     -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
Caliban        512M            4076  18  1764  17            4102  15  79.5  77
Latency                         294ms     184ms             44630us    1699ms


This made the buildworld time /really/ slow:

real    1068m1.246s
user    904m49.768s
sys     80m51.158s


(buildkernel took about an additional ten hours).

I'm hoping that replacing it with a more modern hard-drive should fix
this, though I'll be poking through atacontrol and dmesg to see if it's
a simple configuration problem.

In the meantime it's actually faster for me to build off of an NFS
mount. Heh.

-T


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