From owner-freebsd-arch  Sun Feb 17  0:40:18 2002
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Date: Sun, 17 Feb 2002 00:28:28 -0800 (PST)
From: Julian Elischer <julian@elischer.org>
To: Matthew Dillon <dillon@apollo.backplane.com>
Cc: arch@FreeBSD.ORG, jhb@FreeBSD.ORG
Subject: Re: buildworld comparison stable vs current
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is this with the ucred change?


On Sun, 17 Feb 2002, Matthew Dillon wrote:

>     Here are the results of a buildworld test building the -current
>     source tree on a SMP stable box and on a SMP current box.  There was
>     some interest at BSDCon for a comparison just to see where we were.
>     Everything matches up except time and context switches, the context
>     switches I presume is because interrupts require context switches
>     in -current.
> 
>     The time difference is 1800 seconds (stable) verses 2219 seconds (current),
>     making stable 1.23 times faster then current at the moment.  I consider
>     this a fairly good number for where we are, and to be expected
>     considering the lack of optimizations in current.
> 
> 						-Matt
> 
>     (note: source is NFS mounted.  /usr/obj is local disk).
> 
> buildworld -j 10 of current on an SMP stable box:
> 
>      1800.50 real      1445.93 user       760.32 sys
>      25860  maximum resident set size
>        971  average shared memory size
>       1164  average unshared data size
>        130  average unshared stack size
>   11062987  page reclaims
>        297  page faults
>          0  swaps
>       2013  block input operations
>       5649  block output operations
>    1540227  messages sent
>    1530792  messages received
>          6  signals received
>    2467550  voluntary context switches
>    1357575  involuntary context switches
> 
> buildworld -j 10 of current on an SMP current box (same hardware specs): 
> 
>      2219.13 real      1796.37 user       968.04 sys
>      25884  maximum resident set size
>        912  average shared memory size
>       1045  average unshared data size
>        126  average unshared stack size
>   11677133  page reclaims
>        537  page faults
>          0  swaps
>       8438  block input operations
>       6774  block output operations
>    1439793  messages sent
>    1439774  messages received
>          6  signals received
>   28670930  voluntary context switches
>    2836255  involuntary context switches
> 
> 
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