CP Q SRM                           
IABIAS : INTENSITY=90%; DURATION=2 
LDUBUF : Q1=300% Q2=200% Q3=110%   
STORBUF: Q1=150% Q2=125% Q3=100%   
DSPBUF : Q1=32767 Q2=32767 Q3=32767
DISPATCHING MINOR TIMESLICE = 5 MS 
MAXWSS : LIMIT=9999%               
...... : PAGES=999999              
XSTORE : 90%                       

The guests are all about 256MB.

This is the classic "nothing has changed" story.  None of us are aware
of anything that has changed over the past few days.  Previously, all
the guests ran like champs. We did go ahead and reboot one of the
troubled guests and that cleared the problem.

Eric Biggs
[EMAIL PROTECTED]

-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Ferguson, Neale
Sent: Tuesday, September 14, 2004 12:35 PM
To: [EMAIL PROTECTED]
Subject: Re: TCP/IP response time

What does:
#CP Q SRM report?
How big are the Linux guests?

-----Original Message-----
We have a handful on Linux guests (20 or so) running in our z/VM 4.4
environment.  Yesterday, for some strange reason, 4 of them started
having terrible response times.  Here are some of the ping times.  These
were issued from another guest.

BAD one:
PING pkdl0106.corp.sprint.com (10.185.26.16): 56 data bytes
64 bytes from 10.185.26.16: icmp_seq=0 ttl=255 time=993.377 ms
64 bytes from 10.185.26.16: icmp_seq=1 ttl=255 time=1000.203 ms
64 bytes from 10.185.26.16: icmp_seq=2 ttl=255 time=1000.878 ms
64 bytes from 10.185.26.16: icmp_seq=3 ttl=255 time=1000.145 ms
64 bytes from 10.185.26.16: icmp_seq=4 ttl=255 time=1000.123 ms
64 bytes from 10.185.26.16: icmp_seq=5 ttl=255 time=1000.093 ms
64 bytes from 10.185.26.16: icmp_seq=6 ttl=255 time=1000.155 ms
--- pkdl0106.corp.sprint.com ping statistics ---
8 packets transmitted, 7 packets received, 12% packet loss
round-trip min/avg/max = 993.377/999.282/1000.878 ms

GOOD one:
PING pkdl0101.corp.sprint.com (10.185.26.11): 56 data bytes
64 bytes from 10.185.26.11: icmp_seq=0 ttl=255 time=0.885 ms
64 bytes from 10.185.26.11: icmp_seq=1 ttl=255 time=0.127 ms
64 bytes from 10.185.26.11: icmp_seq=2 ttl=255 time=0.111 ms
64 bytes from 10.185.26.11: icmp_seq=3 ttl=255 time=0.157 ms
64 bytes from 10.185.26.11: icmp_seq=4 ttl=255 time=0.184 ms
--- pkdl0101.corp.sprint.com ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 0.111/0.292/0.885 ms

Any ideas what to look for? The CPU on all the servers is relatively
idle.

Thanks,

Eric Biggs
[EMAIL PROTECTED]

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