> What makes you so sure that this is the result of calling gettimeofday()
> repeatedly?! It could be _any_ system call, right?!

By using strace unix command.

-[-[-[-[-[-[-[-[-[-[-[-[
$ strace bin/squeak image/myImage.image
...
gettimeofday({1021179767, 195381}, NULL) = 0
gettimeofday({1021179767, 195443}, NULL) = 0
gettimeofday({1021179767, 195527}, NULL) = 0
gettimeofday({1021179767, 195577}, NULL) = 0
gettimeofday({1021179767, 195640}, NULL) = 0
gettimeofday({1021179767, 195705}, NULL) = 0
gettimeofday({1021179767, 195762}, NULL) = 0
...
-]-]-]-]-]-]-]-]-]-]-]-]

Cheers,
Alexandre

> 
> Cheers,
>   - Andreas
> 
> > -----Original Message-----
> > From: squeak-dev-admin at lists.squeakfoundation.org 
> > [mailto:squeak-dev-admin at lists.squeakfoundation.org] On 
> > Behalf Of Cees de Groot
> > Sent: Sunday, May 12, 2002 11:20 AM
> > To: squeak-dev at lists.squeakfoundation.org
> > Subject: gettimeofday() revisited
> > 
> > 
> > If anyone still things that calling gettimeofday() multiple 
> > thousand times per 
> > second is a good idea, here is some top output:
> > 
> >  11:18am  up 6 days, 10:57,  1 user,  load average: 0.05, 0.12, 0.39
> > 263 processes: 252 sleeping, 1 running, 10 zombie, 0 stopped
> > CPU states:  8.7% user, 25.9% system,  0.0% nice, 65.3% idle
> > Mem:  1029384K av, 1018216K used,   11168K free,       0K 
> > shrd,  117660K buff
> > Swap: 1056124K av,   57280K used,  998844K free               
> >    803368K cached
> > 
> >   PID USER     PRI  NI  SIZE  RSS SHARE STAT  LIB %CPU %MEM   
> > TIME COMMAND
> > 27058 uml0003   17   0  1108 1108  1100 S    1092 25.2  0.1 
> > 356:56 linux-vrt-3
> > 18004 uml0003   13   0 29620  28M 29612 S     27M 21.5  2.8 
> > 363:31 linux-vrt-3
> > 
> > process 18004 is a Squeak VM inside a user-mode Linux virtual 
> > linux machine. 
> > Process 27058 is the kernel thread that handles all the 
> > system calls. A system 
> > call in user-mode Linux is a context switch, and the result 
> > of all the 
> > gettimeofdays() is that the processor runs hot doing context 
> > switches... :-(
> > 
> > So there goes my idea of installing Swiki servers inside 
> > user-mode Linux 
> > virtual machines :-(
> > -- 
> > Cees de Groot               http://www.cdegroot.com     
> > <cg at cdegroot.com>
> > GnuPG 1024D/E0989E8B 0016 F679 F38D 5946 4ECD  1986 F303 937F 
> > E098 9E8B
> > 
> > 
> > 
> 

-- 
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._
Bergel Alexandre  http://www.iam.unibe.ch/~bergel
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^