Hi, Laurynas! On Feb 10, Laurynas Biveinis wrote: > Sergei - > > >> >> > XtraDB simply does not compile on all our builders - Percona > >> >> > has introduced patches that use CPU atomic ops and didn't > >> >> > implement a fallback for setups where they are not available > >> >> > (like all the rest of the code does, including InnoDB). > >> >> > >> >> Have we reported bugs upstream? > >> > > >> > https://bugs.launchpad.net/bugs/1276963 > >> > > >> >> Do we plan on fixing this ourselves if upstream doesn't? > >> > > >> > Not at the moment - that code is quite complex. > >> > >> In the bug report you mention RHEL 5 with GCC 4.1.2 (presumably on > >> 32 bits). This is one of our supported platforms too, and we solve > >> this by adding -march=i686 which makes the necessary builtins > >> available. Would that work for you? > > > > That kind of worked. XtraDB compiled. > > But query_response_time failed with "unable to find a register to spill > > in class 'GENERAL_REGS'". > > > > Still better than before. In the worst case, I'll enable XtraDB and > > disable query_response_time plugin. > > Pushing down -march=i686 to xtradb dir only would work around this, > wouldn't it?
Yes. I wasn't quite sure whether it's a good idea to build different parts of the server with different -mtune settings. But ok, I'll try that. > >> used to implement the relative XtraDB thread priorities: > >> http://www.percona.com/doc/percona-server/5.6/performance/xtradb_performance_improvements_for_io-bound_highly-concurrent_workloads.html#relative-thread-scheduling-priorities-for-xtradb. > >> On non-Linux plaftorms the feature should compile but should be > >> silently disabled, that is, setting innodb_sched_priority_* options > >> are no-ops. How big is this an issue for you? > > > > Or do you mean a different behavior of innodb_sched_priority_* options? > > I think it's ok for us, if it's ok for you :) > > Yes, I mean the different behavior. It's OK for us because the > behavior is correct on all the platforms we support, but it wouldn't > be OK on some of the platforms you support, would it? I believe it's ok anyway. MySQL always used to have platform-specific features, like thread priorities, connections that use shared memory, and so on. Regards, Sergei _______________________________________________ Mailing list: https://launchpad.net/~maria-discuss Post to : maria-discuss@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-discuss More help : https://help.launchpad.net/ListHelp
