Re: Better interactivity in low-memory situations

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Aug 09, 2019 at 03:50:43PM -0600, Chris Murphy wrote:
[..]
> Problem and thesis statement:
> Certain workloads, such as building webkitGTK from source, results in
> heavy swap usage eventually leading to the system becoming totally
> unresponsive. Look into switching from disk based swap, to swap on a
> ZRAM device.
> 
> Summary of findings (restated, but basically the same as found at [2]):
> Test system, Macbook Pro, Intel Core i7-2820QM (4/8 cores), 8GiB RAM,
> Samsung SSD 840 EVO, Fedora Rawhide Workstation.
> Test case, build WebKitGTK from source.
[..]

To avoid such issues I disable swap on my machines. I really don't see
the point of having a swap partition if you have 16 or 32 GiB RAM. Even
with 8 GiB I disable swap.

With - say - 8 GiB the build of a large project might fail (e.g. llvm,
e.g. during linking) but it then fails fast and I can just restart it
with `ninja -j2` or something like that.

Another source of IO related unresponsiveness is buffer bloat - I thus
apply this configuration on my machines:

    $ cat /etc/sysctl.d/01-disk-bufferbloat.conf
    vm.dirty_background_bytes=107374182
    vm.dirty_bytes=214748364

Best regards
Georg
-- 
'Time your programs before making claims about efficiency'
  (Bjarne Stroustrup, The C++ Programming Language, 4th ed., p. 132, 2013)
_______________________________________________
devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx
Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Fedora Announce]     [Fedora Users]     [Fedora Kernel]     [Fedora Testing]     [Fedora Formulas]     [Fedora PHP Devel]     [Kernel Development]     [Fedora Legacy]     [Fedora Maintainers]     [Fedora Desktop]     [PAM]     [Red Hat Development]     [Gimp]     [Yosemite News]

  Powered by Linux