Re: Reload kernel?

[Roger Heflin]

Usually that slow down is swapping.  Have you checked to see how much
swap is in use?

I have machines with 10gb of ram and that is not enough and used to
get slowdowns prior to me setting up earlyoom.  With earlyoom it
generally kills sets of firefox tabs and generally works ok, but I
have had things get bad enough that it keeps killing the tab I want to
view and then I have to find someone else to kill so I have enough
ram.

if you have sysstat / sar installed it would have data you could view
with sar -S that would tell you if it is swapping/paging.

vmstat 1
 swpd column, that is the numberof kb swapped, the higher it gets the
uglier it gets.

And if it is the most likely memory usage, rebooting the kernel would
not fix anything as memory consumption is mostly a userspace problem.

On Sat, Sep 26, 2020 at 6:12 PM ToddAndMargo via users
 wrote:
> On 2020-09-26 03:20, Patrick O'Callaghan wrote:
> > On Sat, 2020-09-26 at 01:45 -0700, ToddAndMargo via users wrote:
> > > On 2020-09-26 01:41, Patrick O'Callaghan wrote:
> > > > On Sat, 2020-09-26 at 00:38 -0700, ToddAndMargo via users wrote:
> > > > > Hi All,
> > > > >
> > > > > Is there a way to reload or restart the kernel without
> > > > > having to reboot?
> > > >
> > > > No.
> > > >
> > > > poc
> > >
> > > Poop!
> > >
> > > Thank you for the confirmation.
> > >
> > > Is the file system part of the kernel?  If not, is there
> > > a way to restart it without rebooting?
> >
> > Depends what you mean by "the file system". Some filesystems are
> > reloadable (either as a module or as FUSE), but others aren't. The
> > underlying filesystem layer is a fixed part of the kernel.
> >
> > Maybe if you explained what you're trying to do, someone might be able
> > to help.
> >
> > poc
>
> FC 32, x64
> Ext4
> Xfce 4.14
>
> Occasionally, my computers slows down.  I have not been
> able to pin down why.  Top shows very little memory usage.
>
> A 1 hour, 12 minute dump (dump/restore) takes 15 hours
> when this happens.  Pop up menus start to lag behind
> the mouse
>
> I am trying to get around the reboot thing.
>
> -T
>
> A reboot ALWAYS fixes the issue.
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