On Monday, November 4, 2013, Angela Schreiber wrote: > hi > > thanks for the figures and the effort. btw... this discussion > belong oak dev list and not to the adobe internal list -> moving. > > if the global cache doesn't add to much to the performance gain > then i would suggest that we drop it immediately...
sure, I'll look at it again. > in jackrabbit the > caching on a global level was the most troublesome part of the > whole permission evaluation and i would definitely want to > avoid running into the same issues again. > > i would suggest to change this to an 'everyone' only cache as i > proposed it earlier to you in a private discussion which also > included a first draft of such an everyone-cache. yes. although it should be a general cache that looks at the principals that have a lot permission entries. this might be the everyone, but can also be other ones. regards Toby > > regards > angela > > On 11/1/13 8:43 AM, "Tobias Bocanegra" <tri...@adobe.com> wrote: > > >Hi, > > > >I quickly tested the ACL performance again using the ManyUserReadTest. > >The tests consists of reading 10k items from a 120k item repository > >which has an ACL set on every 10th node. Each tests uses a different > >user (1 of 1000) which each is member of 10 groups. > > > >if my tests are accurate, oak shows now the same performance as > >jackrabbit. for admin sessions, it's even faster than jackrabbit. I > >find it still not acceptable, that the non-admin case is 3 times > >slower than the admin case. > > > >it's also of significance, that the global cache does not really gain > >much performance for this test. see the last section of numbers. I > >think that the global ACL cache is only beneficial for some > >principals, like "everyone" that are used for every request. and/or > >only really makes a difference, if the overall ACL evaluation overhead > >is reduced. > > > >Regards, Toby > > > >Executing benchmarks as admin: false on Oak-Tar > >----------------------------------------------------------- > ># ManyUserReadTest , C, min, 10%, 50%, 90%, > > max, N > >Oak-Tar , 1, 565, 578, 600, 615, > > 627, 34 > >Oak-Tar , 2, 653, 681, 715, 761, > > 798, 56 > >Oak-Tar , 4, 822, 989, 1053, 1101, > > 1126, 78 > >Oak-Tar , 8, 1509, 1626, 1722, 1798, > > 1893, 96 > >Oak-Tar , 10, 1905, 2041, 2175, 2298, > > 2375, 100 > >Oak-Tar , 15, 2545, 2850, 3201, 3484, > > 3663, 103 > >Oak-Tar , 20, 3519, 3852, 4254, 4737, > > 5251, 100 > >Oak-Tar , 50, 2666, 9504, 10450, 11440, > >13050, 104 > >Executing benchmarks as admin: false on Jackrabbit > >----------------------------------------------------------- > ># ManyUserReadTest , C, min, 10%, 50%, 90%, > > max, N > >Jackrabbit , 1, 455, 495, 539, 625, > > 1148, 36 > >Jackrabbit , 2, 507, 512, 575, 841, > > 1264, 62 > >Jackrabbit , 4, 768, 789, 861, 1220, > > 1266, 88 > >Jackrabbit , 8, 1416, 1516, 1624, 1999, > > 2038, 96 > >Jackrabbit , 10, 1764, 1812, 2074, 2796, > > 2859, 90 > >Jackrabbit , 15, 3030, 3077, 3611, 3841, > > 3950, 90 > >Jackrabbit , 20, 4495, 4683, 4874, 5031, > > 5121, 100 > >Jackrabbit , 50, 12219, 12546, 12827, 13232, >
