Re: tuning a VERY heavily (30.0) loaded scerver

[Matt Dillon]

:|     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?
:-- 
:+-----------------------------------------------------------+
:| [EMAIL PROTECTED]         | [EMAIL PROTECTED]       |

    What Alfred said:

    sysctl -w kern.ipc.shm_use_phys=1

    (run prior to creating the initial shared memory segment, e.g. when
    the machine is booted).

    That should solve the pv entry problem.  What Alfred said in regards
    to 'sysctl -a' crashing too... We'll fix it if you give us a 
    traceback!

    The kernel config you are using would be useful.  It sounds like there
    are a bunch of things you either need to tune or have already tuned in
    the kernel configuration.

                                        -Matt


To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message