High CPU load during startup and sometimes after

[PraysToPan]

Ha! Awesome! That's priceless. Even better, you're blessed with a wife with a sense of humour!

[PraysToPan]

You did leave out one situation, though. Men speaking to women. Oops! PANIC!

[SteveRiley]

* Men speaking to women: anticipatory, because men assume they'll get what they want but are easily fooled by "deceptive idleness"; deprecated because men never change

[vinnywright]

if one dose

echo cfq > /sys/block/sda/queue/scheduler

dose it stick after a reboot yes/no ? if no how to make it stick ,,,,,and how do you enable the hugepages?

VINNY

[PraysToPan]

if one dose

echo cfq > /sys/block/sda/queue/scheduler

dose it stick after a reboot yes/no ? if no how to make it stick ,,,,,and how do you enable the hugepages?

VINNY

The easiest way to do it, which insures co-operation with Ubuntu kernel updates, etc., is to add it to the Grub boot loader.

edit as root:
/etc/default/grub

Edit or add this configuration option so it looks like the following:
GRUB_CMDLINE_LINUX="elevator=cfq"

There are other ways to do it, but since another change, which has to be passed at boot, turned out to be even better for my situation, I chose this one. If you are interested in trying it, just use this entry, instead:
GRUB_CMDLINE_LINUX="elevator=cfq transparent_hugepage=always"

Save the file, and run:
sudo update-grub

Then reboot.

[PraysToPan]

I should mention, when you configure the scheduler at boot, it becomes the default for the whole system. You can't set it for individual devices on the kernel command line.

[vinnywright]

thank you @PraysToPan ,,,,,,will let you know how it Pans out ,,,,,

VINNY

[PraysToPan]

* Men speaking to women: anticipatory, because men assume they'll get what they want but are easily fooled by "deceptive idleness"; deprecated because men never change

Certainly more than a kernel of truth in it!

We tend do well with laziness, impatience, and hubris in our work lives, after all!

[vinnywright]

well it took , and should be easy to undo if decided to .
will put things through there paces tomorrow and see if it helps any or not .

VINNY

[oshunluvr]

LOL, I just had to explain all this stuff to my wife -- sometimes she asks what I'm doing on here, and I'll tell her! We decided that men and women implement the following queueing algorithms:

* Men speaking to men: noop, because men don't need anything more than a simple FIFO buffer
* Women speaking to women: CFQ, of course, because women are always completely fair with each other
* Women speaking to men: deadline, because women will wait only a short finite time before forcibly changing the priority of men

Bwhahahaha.

I'm going to see if I can get that onto a t-shirt! :cool:

[SteveRiley]

Don't forget the fourth one that I added later