This bug was fixed in the package libhybris - 0.1.0+git20131207+e452e83-0ubuntu26
--------------- libhybris (0.1.0+git20131207+e452e83-0ubuntu26) utopic; urgency=medium [ Yu-Cheng Chou <[email protected]> ] * debian/control: fix typo in description (LP: #1259444) [ Daniel van Vugt ] * hooks: converting linear search into a binary search (LP: #1343198) -- Ricardo Salveti de Araujo <[email protected]> Thu, 14 Aug 2014 17:45:44 -0300 ** Changed in: libhybris (Ubuntu) Status: Triaged => Fix Released -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libhybris in Ubuntu. https://bugs.launchpad.net/bugs/1343198 Title: [performance] Mir spends 12%+ CPU time in get_hooked_symbol (libhybris-common) comparing strings Status in Mir: Invalid Status in “libhybris” package in Ubuntu: Fix Released Bug description: On the N4, Mir spends 12%+ CPU time in get_hooked_symbol (libhybris- common). Actually callgrind can't decide; it's somewhere between 12% and 46000% ;) So it's big. Looking at the hybris code, there's a rather large bottleneck that's obvious: get_hooked_symbol does a linear search (many times) of a large list of strings using strcmp alone. That's why 22132 calls to get_hooked_symbol are yielding over 5 million calls to strcmp. Upstream hybris appears to have been modified to use a cache/hashing instead of the ugly linear search we have. To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1343198/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
