Re: Call for Foundation-supported Project Ideas

On 11/28/21 18:36, Steve Kargl wrote:
> On Sun, Nov 28, 2021 at 05:55:32PM -0600, Jason Bacon wrote:
>> On 11/28/21 16:07, Steve Kargl wrote:
>>>
>>> %  ps -ww -p 77387
>>>     PID TT  STAT     TIME COMMAND
>>> 77387  2  R    40:34.67 c++
>>>
>>> 40 minutes for 1 file with many exceeding 30 minutes seems a tad bit
>>> excessive.
>>
>> I would bet you have a hardware issue.  I've never seen a buildworld take
>> more than a few hours and that was on some very old hardware.
>>
> 
> It's certainly not the latest and greatest,
> CPU: Intel(R) Core(TM)2 Duo CPU     T7250  @ 2.00GHz (1995.04-MHz K8-class CPU)
> ...
> ada0: <Patriot Burst SBFM91.0> ACS-4 ATA SATA 3.x device
> ada0: Serial Number 1B0607771A0800257271
> ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
> 
> but this laptop has built FreeBSD for several years and each
> year and with new import of llvm the buildworld times go up,
> up, up...
> 
> buildworld is essentially the only thing running on it.
> 
> last pid:  4921;  load averages:  2.17,  2.12,  2.29; b up 4+22:40:32  16:35:53
> 78 processes:  3 running, 75 sleeping
> CPU:  0.2% user, 98.0% nice,  1.4% system,  0.4% interrupt,  0.0% idle
> Mem: 1045M Active, 1543M Inact, 11M Laundry, 776M Wired, 395M Buf, 575M Free
> Swap: 3881M Total, 84M Used, 3798M Free, 2% Inuse
> 
>    PID USERNAME    THR PRI NICE   SIZE    RES STATE    C   TIME    WCPU COMMAND
>   4918 root          1 106    4   220M   153M RUN      1   2:17  97.05% c++
>   4763 root          1 106    4  1140M   924M CPU0     0  13:29  95.20% c++
>   4921 kargl         1  20    0    14M  3392K CPU1     1   0:00   1.47% top
>   1018 kargl         3  21    0   169M    23M select   0  50:22   1.14% Xorg
>   4889 kargl         1  20    0    22M  8636K select   0   0:00   0.16% xterm
> 

CPU utilization close to 100% would pretty much rule out a disk 
bottleneck, assuming it stays at that level most of the time.  I would 
watch it closely for a while, as well as the swap stats.  I would guess 
the compiler WCPU will plummet at some point if it's taking half an hour 
to compile one file.

-- 
All wars are civil wars, because all men are brothers ... Each one owes
infinitely more to the human race than to the particular country in
which he was born.
                 -- Francois Fenelon