https://bugs.documentfoundation.org/show_bug.cgi?id=102214
Bug ID: 102214
Summary: Focusing in Impress w/ GTK3 integration unusably slow,
ok without
Product: LibreOffice
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Impress
Assignee: [email protected]
Reporter: [email protected]
Created attachment 127344
--> https://bugs.documentfoundation.org/attachment.cgi?id=127344&action=edit
perf profile excerpt
Hi,
After upgrading libreoffice on debian unstable (to 1:5.2.1-2, but previous 5.2
releases also are affected) it became unusably slow. Every focus, even in a
newly created document, of a text input element takes 10-15s. Deleting
libreoffice's profile doesn't change anything.
A fair amount of debugging revealed that that's only the case if the gtk3
integration is used. Uninstalling it restores acceptable speed.
Profiles while the 100% CPU periods all roughly look like in the first attached
document. The non-opened (to reduce size) callers all lead back to
OutputDevice::ImplUpdateAllFontData.
I've also attached a strace excerpt of one of the 100% period. There repeatedly
seems to be a configmgrWriter thread started (c.f. clone() and
prctl(PR_SET_NAME, "configmgrWriter\0") = 0), and several font files (like
/usr/share/fonts/opentype/cantarell/Cantarell-Regular.otf) opened.
If there's anything I can do to help to nail this further...
Regards,
Andres
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