Dear Till,
Thank you very much for taking your time to help investigate this
issue and providing us a method to continue the investigation even when
you are so busy.
We had tried to figure out the difference of convert into PostScript and
no conversion to PostScript by the method you provide
A problem I have observed in the logs is that foomatic-rip calls
Ghostscript twice here. Once to convert the PDF input into PostrScript
and then to convert the PostScript into PCL XL.
Can you please try to set up your printer with the attached PPD file?
TRhe difference to the original is the
One thing you should test is to run Ghostscript separately. For this,
take the Ghostscript command line from the error_log and feed your PDF
file directly into it. How long does it take? Is it much faster than
running as part of the print job? Or is it more or less the same?
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You received this
Dear Till,
Thank you very much for taking your time to help investigate this issue
and providing us a way to judge if "Ghostscript" causes the slowdown of
"pdftops" even when you are so busy.
If possible, can you do us a favor on the below investigation：
We found that Ricoh PS driver does not
Sorry for the late reply, I had some other more urgent tasks to do.
I have looked into your log.
foomatic-rip was running for 5 seconds (09:09:52 - 09:09:57) and it ran
this time due to the Ghostscript process it called and which by itself
ran at least 4 seconds. This does not look for a very
Dear Till,
I'am very sorry to bother you again.
But we have to ask you do me a favor to investigate why
cups-filter(foomatic-rip) process takes more time, cause
cups-filter(foomatic-rip)'s investigation is beyond our ability.
We had investigate all printing related filter,
Dear Till,
Happy new year!
I'am very sorry to bother you again.
We are still working hard to looking for cause why Ubuntu 16.04 printing
performance slowdown.
Here are some information that may can be helpful for the investigation:
We figure out that "foomatic-rip" is the key object which
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 doing the investigation whether GhostScript slowdown the printing
performance with GhostScript Developer. But they figure out that
GhostScript
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
Dear Till,
Thanks for your investigation of this problem.
Below are the information we found maybe helpful for the investigation:
As we said before:"The phenomenon that print jobs slower in 16.04 is more
obvious when printing many jobs in the same time."
We figure out that the interval
I have looked into the error_log files and the processing by the filters
on 16.04 takes ~20 seconds and on 14.04 less time. The 326 seconds you
observe on 16.04 is caused by the printer's processing of the PostScript
it receives. The PostScript is generated by Ghostscript (you find the
Ghostscript
Dear,
Our user have huge printing job to do in the next week(November 20). So, they
are eagerly want to know that can we offer them an workaround(an fixed solution
would be best) for this slowdown problem.
We(RICOH printer driver developer) are still working hard to looking for an
workaround
Below are the information about this slowdown problem:
1.cups-filters version:
Ubuntu 16.04：cups-filters 1.8.3-2ubuntu3.4
Ubuntu 14.04：cups-filters 1.0.52-0ubuntu1.7
2.Print file:
Log_PrintFile_Drivers.zip/j9_5Page.pdf
3.CUPS error_log
Log_PrintFile_Drivers.zip/error_log14.04
To find out about the slowing down I need some more information:
Please attach one or more files which you have printed and where you
have observed the slowdown.
Also post error_log files (in debug mode, see "CUPS error_log" section
of https://wiki.ubuntu.com/DebuggingPrintingProblems) of jobs
We are reported that users(who are affect by this problem ) can't do
their job normally. Such as, doctors' consulting speed are seriously
delay by the medical diagnostic document printing speed.
We(RICOH printer driver developer) are still working hard to looking for an
workaround to make sure
** Package changed: ubuntu => cups (Ubuntu)
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https://bugs.launchpad.net/bugs/1801496
Title:
Printing job in 16.04 is slower than in 14.04
Status in cups
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