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authorlukefromdc <[email protected]>2018-10-03 00:55:11 -0400
committerlukefromdc <[email protected]>2018-10-03 01:11:02 -0400
commit6c423bc27d2803f3259bcca9f518a1c22b2b5fd1 (patch)
treea526c253d7cd39c38a64d5acb48638e07d1351cc /libcaja-extension/caja-menu-item.h
parent021ff2ac062f1cfd52726c78e9a3956405001c6e (diff)
downloadcaja-6c423bc27d2803f3259bcca9f518a1c22b2b5fd1.tar.bz2
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Caja-icon-info: Optimize icon lookups by GIcon.
The caja_icon_info_lookup method was potentially doing multiple icon lookups for a single icon, as well as triggering an additional fallback lookup when returning an empty (no pixbuf) CajaIconInfo to CajaFile. This streamlines and simplifies the lookup process. The hash table lookup always occurs first, before any Gtk icon cache lookup is made (these are expensive, according to perf analysis,) and a returned icon info will *always* be added to a hash table, potentially already containing a fallback icon. GIcons stringify well enough to use the strings exclusively for hash keys. This eliminates the extra cost of looking up filenames from the Gtk icon cache. Ported from github.com/linuxmint/nemo/commit/98843e26b48cd3526cacfe90cfa4ba201d1f3aee where this benchmark resulted for Nemo: .# sync; echo 3 > /proc/sys/vm/drop_caches mtwebster:~/bin/nemo[master]> NEMO_BENCHMARK_LOADING=1 nemo /usr/bin with: Nemo startup time: 2.011817 seconds Folder load time: 1.158854 seconds Idle...Folder load time: 1.226699 seconds without: Nemo startup time: 2.464361 seconds Folder load time: 1.591494 seconds Idle...Folder load time: 1.692273 seconds
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