Using 2 CPUs with BIND

[Stacey Jonathan Marshall]

Mike Diggins wrote:
>
> Thanks. Would this imply it has detected multiple CPUs? I still don't 
> see any mention of it in my logs.
The below output does indicated that you have five threads.  I'm not 
sure why your log is not showing the message.  Double check the log 
configuration and check /var/adm/messages for other messages indicating 
a problem.

Stace
>
> diggins at newblack<~># /usr/bin/ps -Lp `pgrep named`
>    PID   LWP TTY        LTIME CMD
>    605     1 ?           0:00 named
>    605     2 ?           0:09 named
>    605     3 ?           0:06 named
>    605     4 ?           0:34 named
>    605     5 ?           0:01 named
>
> -Mike
>
>
>
> On Fri, 2 Jan 2009, Stacey Jonathan Marshall wrote:
>
>> Mike Diggins wrote:
>>>
>>> I noticed that when BIND 9.2.4 on Redhat Linux (Intel x86) starts, 
>>> the log records:
>>>
>>> dns1 named[28513]: starting BIND 9.2.4 -u named -t /var/named/chroot
>>> dns1 named[28513]: using 2 CPUs
>>>
>>> When I start BIND on my Solaris 10 SPARC dual CPU (V210) system 
>>> 9.4.2-P2,
>>> I don't get the message "using 2 CPUs", but that's what I want. I
>> The message format changed slightly in BIND 9.4.2-p2, from 
>> bin/named/main.c:
>>
>> #ifdef ISC_PLATFORM_USETHREADS
>>     if (ns_g_cpus == 0)
>>         ns_g_cpus = ns_g_cpus_detected;
>>     isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL, 
>> NS_LOGMODULE_SERVER,
>>               ISC_LOG_INFO, "found %u CPU%s, using %u worker thread%s",
>>               ns_g_cpus_detected, ns_g_cpus_detected == 1 ? "" : "s",
>>               ns_g_cpus, ns_g_cpus == 1 ? "" : "s");
>> #else
>>     ns_g_cpus = 1;
>> #endif
>>
>>
>>
>>> compiled it with './configure --prefix=/usr/local/bind 
>>> --enable-threads'
>> Take a look at the config.log output to check that threading is 
>> indeed enabled, it should be by default anyhow on Solaris 10 system.
>>> and start it with '/usr/local/bind/sbin/named -n 2 -c /etc/named.conf'.
>>> How do I know it's actually using the two SPARC CPUs?
>> Use "/usr/bin/ps -Lp `pgrep named`" will show you the number of 
>> light-weight-processes (LWP), threads, running for the named process. 
>> Incidently the '-n' option shouldn't be necessary, named can detect 
>> the number of CPU's on Solaris.
>>
>> Regards,
>>
>> Stace
>>
>>
>>
>>>
>>> -Mike
>>>
>>>             _________________________________________
>>>
>>> Mike Diggins                   Voice:  905.525.9140 Ext. 27471
>>> Network Analyst, Enterprise Networks    FAX:    905.522.0511
>>> University Technology Services         E-Mail: mike.diggins at mcmaster.ca
>>> McMaster University, Hamilton, Ontario
>>>
>>>
>>> _______________________________________________
>>> bind-users mailing list
>>> bind-users at lists.isc.org
>>> https://lists.isc.org/mailman/listinfo/bind-users
>>
>>
>
>
>             _________________________________________
>
> Mike Diggins                   Voice:  905.525.9140 Ext. 27471
> Network Analyst, Enterprise Networks    FAX:    905.522.0511
> University Technology Services         E-Mail: mike.diggins at mcmaster.ca
> McMaster University, Hamilton, Ontario
>
>
> _______________________________________________
> bind-users mailing list
> bind-users at lists.isc.org
> https://lists.isc.org/mailman/listinfo/bind-users