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[LDM #DSW-144649]: LDM 6.7.0.3 performance improvement with dcgrib2---just wondering
- Subject: [LDM #DSW-144649]: LDM 6.7.0.3 performance improvement with dcgrib2---just wondering
- Date: Mon, 08 Sep 2008 10:52:57 -0600
Gilbert,
> While it's not pegging my CPU at 99% anymore, it's still pretty high on my
> machine running Fedora 8:
>
> top - 12:28:28 up 3 days, 2:34, 3 users, load average: 2.21, 1.85, 1.29
>
> Tasks: 240 total, 1 running, 239 sleeping, 0 stopped, 0 zombie
> Cpu0 : 13.2%us, 5.6%sy, 0.0%ni, 77.5%id, 3.6%wa, 0.0%hi, 0.0%si,
> 0.0%st
> Cpu1 : 1.6%us, 5.6%sy, 0.0%ni, 92.5%id, 0.0%wa, 0.0%hi, 0.3%si,
> 0.0%st
> Cpu2 : 18.9%us, 5.6%sy, 0.0%ni, 73.8%id, 1.7%wa, 0.0%hi, 0.0%si,
> 0.0%st
> Cpu3 : 16.4%us, 5.6%sy, 0.0%ni, 77.4%id, 0.7%wa, 0.0%hi, 0.0%si,
> 0.0%st
> Mem: 3368604k total, 3243140k used, 125464k free, 74872k buffers
> Swap: 2031608k total, 18484k used, 2013124k free, 2672508k cached
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 4396 ldm 20 0 50548 7752 832 S 30 0.2 1:08.31 dcgrib2
>
> ----
> Just thought you'd want to know in case it's not as good as you want it
> to be.
It is what it is. The dcgrib2(1) program uses a lot of resources. The
changes I made just stop it from being interrupted by SIGCONTs from the
LDM process group: it's still going to use a lot of resources.
> Take care!
You too. Thanks for reporting on this.
Regards,
Steve Emmerson
Ticket Details
===================
Ticket ID: DSW-144649
Department: Support LDM
Priority: Normal
Status: Closed
