Re: [ccache] PATCH: Look at include files' mtimes
>> Allowing multiple versions to co-reside and not trash each >> other's result would be useful. =A0Presently I need redefine >> CCACHE_DIR for each version to avoid overlap, which is >> annoying. [...] > > From the top of my head, the issues I'm aware of regarding different >ccache versions accessing the same cache directory are: > >* <3.1 throws away statistics counters from future ccache versions, >which is annoying but shouldn't be critical. >* <3.1 and >=3.1 have different methods of locking and updating the >stats files. If you're unlucky, the stats files (including the cache >size limits) could be garbled. > >Do you know of more issues than the above? I don't know of specific recent issues. ___ ccache mailing list ccache@lists.samba.org https://lists.samba.org/mailman/listinfo/ccache
Re: [ccache] PATCH: Look at include files' mtimes
On 28 May 2012 14:03, Wilson Snyder wrote: > Allowing multiple versions to co-reside and not trash each > other's result would be useful. Presently I need redefine > CCACHE_DIR for each version to avoid overlap, which is > annoying. [...] >From the top of my head, the issues I'm aware of regarding different ccache versions accessing the same cache directory are: * <3.1 throws away statistics counters from future ccache versions, which is annoying but shouldn't be critical. * <3.1 and >=3.1 have different methods of locking and updating the stats files. If you're unlucky, the stats files (including the cache size limits) could be garbled. Do you know of more issues than the above? -- Joel ___ ccache mailing list ccache@lists.samba.org https://lists.samba.org/mailman/listinfo/ccache
Re: [ccache] PATCH: Look at include files' mtimes
>> I can't say I'm particularly interested in supporting two manifest >> versions simultaneously > >I agree that supporting only the latest should be enough. > >Coming to think of it, perhaps it would be a good idea to include the >manifest version in the manifest hash so that ccache versions using >different manifest versions won't even try to read each others' >manifest files? (Currently, ccache overwrites incompatible manifest >files with its own version.) Allowing multiple versions to co-reside and not trash each other's result would be useful. Presently I need redefine CCACHE_DIR for each version to avoid overlap, which is annoying. (On a large multi-os cluster it often isn't possible to roll out a new version simultaneously.) Although... if the stats format changes overlap must still be avoided. Including the version number in the stats filename would solve that too. ___ ccache mailing list ccache@lists.samba.org https://lists.samba.org/mailman/listinfo/ccache
