>> 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.
On 2020-09-26 16:22, Roger Heflin wrote:
> Usually that slow down is swapping. Have you checked to see how much
> swap is in use?
top - 17:39:41 up 1:55, 1 user, load average: 0.26, 0.37, 0.37
Tasks: 245 total, 2 running, 243 sleeping, 0 stopped, 0 zombie
%Cpu(s): 3.6 us, 0.8 sy, 0.0 ni, 95.2 id, 0.2 wa, 0.2 hi, 0.1 si,
0.0 st
MiB Mem : 15896.7 total, 11478.9 free, 1867.8 used, 2550.0 buff/cache
MiB Swap: 8031.0 total, 8031.0 free, 0.0 used. 13333.0 avail Mem
>
> 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.
When it happens, it is instant
> 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.
$ vmstat 1
procs -----------memory---------- ---swap-- -----io---- -system--
------cpu-----
r b swpd free buff cache si so bi bo in cs us sy
id wa st
1 0 0 11738732 150112 2474552 0 0 70 21 289 516 3
2 95 0 0
0 0 0 11749568 150112 2462464 0 0 0 0 615 1458 1
1 97 0 0
0 0 0 11749708 150112 2462464 0 0 0 0 488 1016 1
1 98 0 0
1 0 0 11749820 150128 2462464 0 0 0 296 478 1185 1
1 98 0 0
0 0 0 11749820 150128 2462480 0 0 0 0 477 1068 2
1 98 0 0
0 0 0 11749568 150128 2462464 0 0 0 8 480 1043 1
1 99 0 0
0 0 0 11749048 150144 2462464 0 0 0 244 693 1425 2
1 97 0 0
>
> And if it is the most likely memory usage, rebooting the kernel would
> not fix anything as memory consumption is mostly a userspace problem.
Also, the mouse chasing the pop up menues has nothing
to do with the file system.
I am at a loss. If it was a hardware issue, a reboot would not fix it.
And my almost identical shop computer does not do this.
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