Re: tuning a VERY heavily (30.0) loaded scerver

[Michael C . Wu]

On Tue, Mar 20, 2001 at 10:15:27AM -0800, Matt Dillon scribbled:
| 
| :Another problem is that we have around 4000+ processes accessing
| :lots of SHM at the same time..
| 
|     How big is 'lots'?  If the shared memory segment is smallish, e.g.
|     less then 64MB, you should be ok.  If it is larger then you will
|     have to do some kernel tuning to avoid running out of pmap entries.

This is exactly what happens to us sometimes. We run out of pmap entries. :)
But what can we tune?
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