Tom,

Like I said, it was a stupid, but necessary question.  Sigh.  It's a lot
easier dealing with mistakes than figuring out new problems.  :)

I got an off-list email informing me that IBM has a new version of the patch
that tries to be more "intelligent" and turn jiffies off only when the
system is idling.  Do you happen to know if the patch you put on is that
version, or the older version?  You might be able to discern that from the
readme file that came with the patch.  I can't say I'll have any advice to
offer if it is the newer version, but perhaps the IBM guys would be willing
to work with you to figure out what's going on.

Mark Post

-----Original Message-----
From: Geyer, Thomas L. [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 29, 2002 5:38 PM
To: [EMAIL PROTECTED]
Subject: FW: Pop Timer Patch


Mark,

The original boot files were in /boot/k_deflt with a symbolic link from
kernel -> k_deflt. I copied the new boot files to /boot/k_test then removed
the symbolic link and created a new symbolic link, kernel -> k_test. Then
re-ran zipl and re-IPLed.



 Tom

-----Original Message-----
From: Post, Mark K [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 29, 2002 4:45 PM
To: [EMAIL PROTECTED]
Subject: Re: Pop Timer Patch


Stupid question, but it's gotta be asked...

You did copy the kernel to /boot, updated /etc/zipl.conf, re-ran zipl, and
re-IPLed didn't you?

Mark Post

-----Original Message-----
From: Geyer, Thomas L. [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 29, 2002 4:30 PM
To: [EMAIL PROTECTED]
Subject: FW: Pop Timer Patch


> I hate to be a pain, but I have installed the pop timer patch (I thought)
> when I created the 2.4.17 kernel. I started with SLES 7 which I received
> from SuSE as a Trial Copy. I applied the patches in the order specified on
> the developerworks website and followed the procedure to rebuild the
> kernel. I selected the CONFIG_NO_IDLE_HZ_TIMER option in menuconfig. The
> following is a section of the .config file that tells me that it is set:
>
> CONFIG_PFAULT=y
> # CONFIG_SHARED_KERNEL is not set
> CONFIG_NO_IDLE_HZ_TIMER=y
>
> #
> # SCSI support
> #
> CONFIG_SCSI=m
> CONFIG_BLK_DEV_SD=m
>
> I am told that the following data from ESAMAP indicates that the Linux
> virtual machine, linuxvm, never leaves the dispatch list.
> UserID   Logged  Non-          Disc- Total  Tran <-------Dispatch
> List------->
> /Class       on  Idle  Active  conn  InQue  /min    Q0    Q1    Q2    Q3
> Ldng
> -------- ------ ----- ------- ------ -----  ---- ----- ----- ----- -----
> -----
>  LINUXVM     1.0     1     1.0      1   0.9     0   0.9     0     0     0
> 0
>
> We are still seeing high CPU utilization from this virtual machine with it
> doing no productive work. It is consistly in the top 15 cpu users on the
> system.
>
> Below are the patches and the sequence they were applied to build the
> kernel:
>
>      tar -xvf /home/geyer/linux-2.4.17.tar
>      tar -xvf /home/geyer/linux-2.4.17-s390-may2002.tar
>     patch -p1 -d linux < linux-2.4.17-s390-may2002.diff
>     tar -zxvf /home/geyer/linux-2.4.17-s390-1-may2002.tar.gz
>    patch -p1 -d linux < linux-2.4.17-s390-1-may2002.diff
>     tar -zxvf /home/geyer/linux-2.4.17-timer-1-may2002.tar.gz
>     patch -p1 -d linux < linux-2.4.17-timer-1-may2002.diff
>
>
> Any suggestions would be greatly appreciated.
>
> Thanks in advance
>
>
> Tom
>
>


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