* ZRAM setup and configuration
@ 2017-10-18 6:22 russel phillipe
2017-10-20 11:05 ` Mulyadi Santosa
0 siblings, 1 reply; 2+ messages in thread
From: russel phillipe @ 2017-10-18 6:22 UTC (permalink / raw)
To: kernelnewbies
I am trying to setup ZRAM on ubuntu 4.4 kernel. I can load and create zram
based swap devices fine as you can see below.
# apt-get install zram-config
cat /proc/swaps
Filename Type Size Used Priority
/dev/sda3 partition 16638972 0 -1
/dev/zram0 partition 2036816 0 5
/dev/zram1 partition 2036816 0 5
/dev/zram2 partition 2036816 0 5
How can I make it work. I tried running memtester and load it with stress
stress --vm-bytes $(awk '/MemFree/{printf "%d\n", $2 * 0.9;}' <
/proc/meminfo)k --vm-keep -m 1
It does not look like it is being used.
I notice that 'used' count in /proc/swaps does not bump@all. I even
tried 'vmstat 1 100 ' while running stress and memtester and did not see
any change in SO and SI.
What am I missing?
Thanks
Russel
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^ permalink raw reply [flat|nested] 2+ messages in thread* ZRAM setup and configuration 2017-10-18 6:22 ZRAM setup and configuration russel phillipe @ 2017-10-20 11:05 ` Mulyadi Santosa 0 siblings, 0 replies; 2+ messages in thread From: Mulyadi Santosa @ 2017-10-20 11:05 UTC (permalink / raw) To: kernelnewbies On Wed, Oct 18, 2017 at 1:22 PM, russel phillipe <russel.phillipe@gmail.com> wrote: > > I am trying to setup ZRAM on ubuntu 4.4 kernel. I can load and create zram > based swap devices fine as you can see below. > > # apt-get install zram-config > > cat /proc/swaps > Filename Type Size Used Priority > /dev/sda3 partition 16638972 0 -1 > /dev/zram0 partition 2036816 0 5 > /dev/zram1 partition 2036816 0 5 > /dev/zram2 partition 2036816 0 5 > > How can I make it work. I tried running memtester and load it with stress > stress --vm-bytes $(awk '/MemFree/{printf "%d\n", $2 * 0.9;}' < > /proc/meminfo)k --vm-keep -m 1 > > It does not look like it is being used. > > I notice that 'used' count in /proc/swaps does not bump at all. I even > tried 'vmstat 1 100 ' while running stress and memtester and did not see > any change in SO and SI. > What am I missing? > > Thanks > Russel > > I think you need to bring more load. Using mem free, that means you don't even push the buffer/page cache to be flushed out. Without using too complicated math, I suggest to stress as much as twice amount of available RAM. Hopefully it will bring difference. regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20171020/a4d05596/attachment.html ^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2017-10-20 11:05 UTC | newest] Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2017-10-18 6:22 ZRAM setup and configuration russel phillipe 2017-10-20 11:05 ` Mulyadi Santosa
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