kernel 2.4.17 with -rmap VM patch ROCKS!!!

kernel 2.4.17 with -rmap VM patch ROCKS!!!

[Anish Srivastava]

Hi!

I installed kernel 2.4.17 on my SMP server with 8CPU's and 8GB RAM 
and lets just say that whenever the entire physical memory was utilised
the box would topple over...with kswapd running a havoc on CPU utilization
So to avoid losing control I had to reboot every 8 hours.

But, it all changed after I applied Rik van Riels 2.4.17-rmap-11c patch
Now, the box is happily running for the past 3 days under heavy load 
without any problems. The RAM utilization is always at about 95% +
but the system doesnt swap at all.....kswapd is running all the time and 
freeing up main memory for other processes. I am quite happy with the
performance of the box........and highly recommend Rik's patches
for anyone else facing similar problems

Thanks to all you guys for helping me out....

Best regards,

Anish Srivastava

Linux Rulez!!!



--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/

Re: kernel 2.4.17 with -rmap VM patch ROCKS!!!

[Andrew Morton]

Anish Srivastava wrote:
> 
> Hi!
> 
> I installed kernel 2.4.17 on my SMP server with 8CPU's and 8GB RAM
> and lets just say that whenever the entire physical memory was utilised
> the box would topple over...with kswapd running a havoc on CPU utilization
> So to avoid losing control I had to reboot every 8 hours.
> 

The fact that the current stable version of the Linux kernel
can only achieve an eight-hour uptime on this class of machine
is a fairly serious problem, don't we all agree?

We need a fix for 2.4.18.

Did you test the -aa patches?

-
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/

Re: kernel 2.4.17 with -rmap VM patch ROCKS!!!

[Anish Srivastava]

> The fact that the current stable version of the Linux kernel
> can only achieve an eight-hour uptime on this class of machine
> is a fairly serious problem, don't we all agree?
> 
> We need a fix for 2.4.18.
> 
> Did you test the -aa patches?
 
No, I havent tried the aa patches. I belive the aa patches are to be 
integrated in the 2.4.18 official stable release.

Since I am quite happy with the performance of my machine with 
the rmap patch......I will leave it as it is. Though, for your information 
I will be checking out the aa patches on my backup machine 
which is also of the same class. I will let you guys know the 
performance with the aa patches incorporated as soon as
I set it up on the other machine.

Regards,
Anish


--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/