Dear Till,
I'am very sorry to bother you again.
We are still working hard to looking for cause why Ubuntu 16.04 printing
performance slowdown.
We figure out that there are many cause may slowdown the print job.
The other cause than OS may slowdown the print job, and we are working on those
cause’s investigation.
Here are some slowdown point about OS issues that we can't investigation
deeper, we hope that you(or your team) can offer a help for the investigation.
The phenomenon that print jobs slower in 16.04 is more obvious when
printing many single page jobs in the same time.
We use a printing manual to simulate the continuous printing. The printing
result shows that Ubuntu 16.04 is slower than 14.04.
Below is the printing time:
------------------------------------
Ubuntu 14.04:
Round 1: 12.86(s)
Round 2: 12.56(s)
Aver: 12.73(s)
Ubuntu 16.04:
Round 1: 14.09(s)
Round 2: 13.98(s)
Aver: 14.29(s)
------------------------------------
Attach file introduction:
------------------------------------
Test log:
\PS_Driver_log\PS_Driver_log\Log\error_log20181204_14.04Origin_A4_7ods_job47_53
\PS_Driver_log\PS_Driver_log\Log\error_log20181204_16.04Origin_A4_7ods_job83_89
Test Driver:
\PS_Driver_log\PS_Driver\Ricoh-Basic-PS-PPDv1.12.1.tar.gz
Test file:
\PS_Driver_log\Testfile\testlinux.ods
Printing manual:
\PS_Driver_log.zip\TestManualOfContinuousPrinting.docx
------------------------------------
By the way, the printing performance is unstable, some times the
slowdown of Ubuntu 16.04 is obvious. But what we can confirm is that
Ubuntu 16.04 is slower all the time.
We appreciate that you can do we a favor on the investigation why
16.04's printing performance slowdown.
Best Regards,
** Attachment added: "PS_Driver_log.zip"
https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+attachment/5219187/+files/PS_Driver_log.zip
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https://bugs.launchpad.net/bugs/1801496
Title:
Printing job in 16.04 is slower than in 14.04
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