On Friday 28 November 2014 10:54:59 PCMan wrote: > More on this topic. I also did benchmarks using strace. > First, I dropped all caches by doing echo 3 > /proc/sys/vm/drop_caches. > Then I used strace to trace all of the child processes of sddm, and then > login. > This is the result I got. > > https://drive.google.com/file/d/0B4BhmC8V2mivMGFRS3BCeFk0ZTQ/view?usp=sharin > g > > We have more than 600,000 system calls during LXQt startup. > This is pretty amazing. More than half of them are just "stat" calls used > to locate icons in the icon theme. This is caused by QIcon::fromTheme() (or > the fixed version in libqtxdg). > Unfortunately, this inefficient poor design is actually "correct" according > to the xdg icon theme spec. Gtk+ solves this with an optional icon cahce. I > believed that KDE does this, too.
Yes, we have a KIconEngine [1] which gets installed in our platform theme plugin. It seems to do caching, but I don't know any details. Cheers Martin [1] http://api.kde.org/frameworks-api/frameworks5-apidocs/kiconthemes/html/classKIconEngine.html
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