Bug 428086 - CUPS performance regression
Summary: CUPS performance regression
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: cups
Version: 5.1
Hardware: All
OS: Linux
high
medium
Target Milestone: rc
: ---
Assignee: Tim Waugh
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 391501
TreeView+ depends on / blocked
 
Reported: 2008-01-09 05:28 UTC by Norm Murray
Modified: 2009-08-18 13:39 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2009-01-20 21:57:58 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHEA-2009:0201 0 normal SHIPPED_LIVE cups enhancement update 2009-01-20 16:06:07 UTC

Description Norm Murray 2008-01-09 05:28:22 UTC
In RHEL 4 we'd added a custom feature to aid printing performance in relation to
fetching a list of queues from a remote server and validating the queue once
selected. 

Customer is reporting that RHEL 5 printing performance had dropped relative to
the current RHEL 4 version. 

Customer only uses lp (not lpr) for job submission and always specifies a
destination. Cups host is usually set through the CUPS_SERVER environment
variable, but sometimes (10%) passed with the -h option on the command line. 

Targeted print threshold time is about 700ms (current using a custom built cups
lp binary on a RHEL 2.1 system), current performance on RHEL 5.1 is about 2
seconds. With 100k print jobs a day,

Comment 1 RHEL Program Management 2008-01-09 05:56:52 UTC
This bugzilla has Keywords: Regression.  

Since no regressions are allowed between releases, 
it is also being proposed as a blocker for this release.  

Please resolve ASAP.

Comment 2 Tim Waugh 2008-01-09 10:24:23 UTC
The solution will be to use the same method as cups-lpd to submit jobs when the
destination is known.

Comment 16 errata-xmlrpc 2009-01-20 21:57:58 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHEA-2009-0201.html


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