Martti Kuparinen wrote:

> dom0 and all domUs were rebooted between tests. The actual test sequence
> was this:
> 
> rm -rf /usr/src/sys/arch/i386/compile/GENERIC
> cd /usr/src/sys/arch/i386/conf
> config GENERIC
> cd ../compile/GENERIC
> time make dependall
> 
> Results
> =======
> 
> 1 x NetBSD 1024 MB GENERIC
> --------------------------
> 446.60 real       405.61 user        31.97 sys
> 
> 1 x NetBSD 128 MB XEN0
> ----------------------
> 490.51 real       411.75 user        63.14 sys
> 
> 1 x NetBSD 128 MB XENU (vnd with 2 GB file-as-disk)
> ---------------------------------------------------
> 492.76 real       415.54 user        61.42 sys
> 
> 1 x NetBSD 128 MB XENU (direct access to the wd0x partition)
> ------------------------------------------------------------
> 493.13 real       415.02 user        61.98 sys
> 
> 4 x NetBSD 128 MB XENU (vnd with 2 GB file-as-disk)
> ---------------------------------------------------
> 1633.38 real      1396.94 user       177.58 sys
> 1641.86 real      1404.19 user       195.83 sys
> 1642.72 real      1403.38 user       196.25 sys
> 1633.69 real      1394.42 user       176.68 sys
> 
> 4 x NetBSD 128 MB XENU (direct access to the wd0x partitions)
> -------------------------------------------------------------
> 1626.80 real      1396.27 user       174.35 sys
> 1642.40 real      1405.37 user       196.97 sys
> 1627.71 real      1395.80 user       174.98 sys
> 1642.59 real      1406.99 user       195.47 sys

Here are the results with "time make -j4 dependall"

4 x NetBSD 128 MB XENU (direct access to the wd0x partitions)
-------------------------------------------------------------
1613.45 real      1442.26 user       213.59 sys
1635.57 real      1449.69 user       227.25 sys
1613.03 real      1442.24 user       218.88 sys
1634.59 real      1449.50 user       232.37 sys

 > I ran the same tests with VMware Workstation 4.5.2 (build 8848)
 > running on Linux 2.6.10.
 >
 > 1 x VMware (NetBSD 3.99.2 / 128 MB)
 > -----------------------------------
 > 677.25 real     228.42 user     465.22 sys
 >
 > 4 x VMware (NetBSD 3.99.2 / 128 MB)
 > -----------------------------------
 > 1956.27 real    684.74 user     1292.46 sys
 > 1980.40 real    699.26 user     1294.21 sys
 > 2003.97 real    706.11 user     1307.21 sys
 > 1972.71 real    680.16 user     1322.24 sys

I don't have access to VMware GSX or ESX so someone else
has to do the mesurements in those environments.

This is with HT active in the BIOS so half of the VMs are
using the "second" processor.

Name              Id  Mem(MB)  CPU  State  Time(s)  Console
Domain-0           0      128    0  r----    308.2
netbsd1            2      127    1  -b---    804.4    9602
netbsd2            3      127    0  -b---    798.0    9603
netbsd3            4      127    1  -b---    803.6    9604
netbsd4            5      127    0  -b---    797.6    9605

Martti