On Mon, 2009-11-16 at 03:49 +, Bishop, Peter wrote:
With zLinux named pipes I think there will be more than one read for
each record, viz one for the cat command and one for the pipe itself
(perhaps two if the program then has to issue another read to get the
data from the pipe).
On Sunday 15 November 2009 18:32, Leslie Turriff wrote:
I wonder how intelligent the Linux pipe mechanism is? If the connection
works by something equivalent to QSAM's get/locate, put/locate, the overhead
would be miniscule; just passing pointers and reactivating the pipeline
stages?
It's
We're looking into it but I think the official word is that it's not supported
by Oracle ... Please check with your Oracle rep
Joe
-Original Message-
From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Szefler
Jakub
Sent: Friday, November 06, 2009 6:08 AM
To:
While the sleep 1 was in clone.sh, the sync was not. I inserted the sync
after the dd and clone.sh is working again and not hanging on the chccwdev
-d.
Thanks for the assist.
Judson West
Systems Programming Team
Teradata Corporation
-Original Message-
Jakub,
I do not see the benefit of hugepages and system z linux. My answer is
simply does not apply.
Richard (Gaz) Gasiorowski
Global System z Linux Virutalization and Mainframce Services Product
Manager
Americas RPE Portfolio Platform Services
CSC
3170 Fairview Park Dr., Falls Church, VA
Thanks again Shane, were you testing with tapes? I'm going to see what I can
do to set up a test against our tape library and get some real results to work
with.
best regards
Peter
Peter Bishop
HP Enterprise Services Asia Pacific South Mainframe Capability Engineering
+61 2 9012 5147
Cross posted to linux-390 and ibmvm:
I kind of waited to see if anyone from IBM would even mention this here. It
came out last week. Prices have come down... a lot...
http://www-03.ibm.com/systems/z/solutions/editions/linux.html
Those of you thinking of consolidating or even adding more
It's not quite that smart. Linux has to copy the data from kernel-space
buffers into user-space memory, at least. So even if the block of data is in
the page cache, there's still a copy operation. It doesn't just give a
pointer to the kernel's block to a process, which is I think what you're
