Aren't those LWPs being shown? (not processes) On Thu, Jan 4, 2024 at 11:54 AM Gary Mills <[email protected]> wrote: > > I have a system that I mostly use for web brousing. It has an AMD > Ryzen 7 2700 Eight-Core Processor, and runs a recent version of OI, > from 2023-11-07. It has 48 gigs of memory with an 8-gig swap > partition. Using Firefox 119.0.1, I noticed that Firefox became > sluggish only a few days after boot. I have five permanent tabs in > Firefox, along with several temporary tabs, using the "Open in new > tab" option. I assumed that ZFS and firefox were fighting over > memory. Indeed, the ZFS ARC was using 32 gigs of memory. To fix this > problem, I put the following into a file in /etc/system.d and > rebooted: > > set zfs:zfs_arc_max = 0x2E0000000 > > This change limited the ARC to 12 gigs, and seems to have corrected > the problem. Firefox scrolling was quick and smooth, and continued to > be so for the next two weeks. > > After the reboot, the swap space looked like this: > > <mills@ryzen:2442>$ swap -sh > total: 940.79M allocated + 536.90M reserved = 1.44G used, 44.81G available > > After 14 days, it was like this: > > <mills@ryzen:2761>$ swap -sh > total: 4.98G allocated + 2.00G reserved = 6.98G used, 25.91G available > > The free memory seems to have stabilized at about 26 gigs. I assume > that ZFS allocates memory from this free space. > > I still have questions about the memory usage of firefox. Here's how > memory size looked after 14 days: > > <mills@ryzen:2762>$ prstat -c -s size > Please wait... > PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP > 1598 mills 2850M 1481M sleep 49 0 26:56:22 0.7% firefox/198 > 941 mills 2558M 2532M sleep 59 0 27:14:03 0.2% Xorg/3 > 1978 mills 578M 272M sleep 59 0 0:03:10 0.0% firefox/25 > 18154 mills 569M 261M sleep 44 0 0:15:33 0.1% firefox/26 > 1868 mills 558M 254M sleep 59 0 0:14:22 0.0% firefox/28 > 1867 mills 414M 158M sleep 59 0 0:10:04 0.0% firefox/24 > 1601 mills 411M 151M sleep 59 0 0:01:01 0.0% firefox/24 > 1602 mills 384M 147M sleep 59 0 0:00:32 0.0% firefox/24 > 1866 mills 360M 124M sleep 59 0 0:09:19 0.0% firefox/24 > 18878 mills 340M 108M sleep 49 0 0:00:01 0.0% firefox/25 > 19646 mills 310M 68M sleep 49 0 0:00:00 0.0% firefox/12 > 19639 mills 310M 69M sleep 59 0 0:00:00 0.0% firefox/12 > 19642 mills 310M 68M sleep 49 0 0:00:00 0.0% firefox/12 > 1604 mills 227M 45M sleep 59 0 0:00:03 0.0% firefox/3 > 1600 mills 227M 44M sleep 59 0 0:00:00 0.0% firefox/4 > Total: 133 processes, 1323 lwps, load averages: 0.22, 0.23, 0.21 > > Why are there so many firefox processes? I was expecting one process > per tab. Clearly there are many more. Why do some of the processes > have so many threads? How much memory does firefox want? > > > -- > -Gary Mills- -refurb- -Winnipeg, Manitoba, Canada- > > _______________________________________________ > oi-dev mailing list > [email protected] > https://openindiana.org/mailman/listinfo/oi-dev
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