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Author SHA1 Message Date
Gareth Rees
b8df4963ee Can't assume that the caller will give us any available time. 
Copied from Perforce
 Change: 188259
 ServerID: perforce.ravenbrook.com
 2015-09-04 22:35:03 +01:00
Gareth Rees
38b52d7a05 Avoid "iso c90 forbids mixed declarations and code" error from gcc. 
Copied from Perforce
 Change: 188257
 ServerID: perforce.ravenbrook.com
 2015-09-04 22:28:40 +01:00
Gareth Rees
d2662a861e Catch-up merge from branch/2015-08-11/policy to branch/2015-08-25/tradeoff. 
Copied from Perforce
 Change: 188250
 ServerID: perforce.ravenbrook.com
 2015-09-04 19:13:28 +01:00
Gareth Rees
800aa3b250 Policycollectiontime is now local to policy.c. 
Improve comment for policyCondemnChain (document the mortalityReturn parameter to; fix design reference).

Copied from Perforce
 Change: 188240
 ServerID: perforce.ravenbrook.com
 2015-09-04 16:02:46 +01:00
Gareth Rees
db81205af5 Move policy for mps_arena_step to policy module. 
Copied from Perforce
 Change: 188238
 ServerID: perforce.ravenbrook.com
 2015-09-04 15:25:37 +01:00
Gareth Rees
d0042b7b46 Move arenadefaultzoneset to be adjacent to its todo. 
Add comments for ArenaDefaultZONESET and LocusPrefDEFAULT.

Copied from Perforce
 Change: 188237
 ServerID: perforce.ravenbrook.com
 2015-09-04 15:24:14 +01:00
Gareth Rees
49635c2e86 Fix bug introduced by change 188219: the end of the interval is not the same as the available collection time. 
Copied from Perforce
 Change: 188223
 ServerID: perforce.ravenbrook.com
 2015-09-04 08:53:23 +01:00
Gareth Rees
c2488346e7 There can only be an emergency when a trace is busy, so check this. 
Copied from Perforce
 Change: 188220
 ServerID: perforce.ravenbrook.com
 2015-09-03 20:14:06 +01:00
Gareth Rees
6f0c939e2f Arenastep considers collecting the world after finishing a trace (not just on entry if no traces are busy). 
ArenaStep does not care about quanta, so call TraceAdvance instead of TracePoll.

Copied from Perforce
 Change: 188219
 ServerID: perforce.ravenbrook.com
 2015-09-03 19:11:49 +01:00
Gareth Rees
0ff67113ae Separate the values "more work to do?" and "amount of work done" in tracepoll. previously, the code used "amount of work done > 0" when it needed "more work to do?" but that's not right, because on the last two calls to traceadvance, no "work" is done (because reclaim work is not measured), but there may still be more work to do. 
Copied from Perforce
 Change: 188218
 ServerID: perforce.ravenbrook.com
 2015-09-03 15:51:37 +01:00
Gareth Rees
1437590cb3 Move the arenaemergency test up to policypollagain. 
Copied from Perforce
 Change: 188217
 ServerID: perforce.ravenbrook.com
 2015-09-03 15:39:39 +01:00
Gareth Rees
68489eec1e Move the clearing of the emergency flag down into tracedestroy{init,finish}. 
Copied from Perforce
 Change: 188216
 ServerID: perforce.ravenbrook.com
 2015-09-03 15:35:38 +01:00
Gareth Rees
61bae42d43 Introduce new type work representing a measure of work done by the collector. use this systematically to make the code clearer. 
Copied from Perforce
 Change: 188210
 ServerID: perforce.ravenbrook.com
 2015-09-03 13:01:55 +01:00
Gareth Rees
7c83105da9 Accumulate scannedsize in mrg pool. 
Copied from Perforce
 Change: 188209
 ServerID: perforce.ravenbrook.com
 2015-09-03 11:54:55 +01:00
Gareth Rees
85595290d3 Accumulate trace metrics in arenapark. 
Copied from Perforce
 Change: 188208
 ServerID: perforce.ravenbrook.com
 2015-09-03 11:50:28 +01:00
Gareth Rees
2979b99c64 Aver that results of arenaavail, arenacollectable and arenascannable are non-negative. 
Copied from Perforce
 Change: 188207
 ServerID: perforce.ravenbrook.com
 2015-09-03 10:12:18 +01:00
Gareth Rees
f1441b58d1 Don't start a trace unless there's work to do. 
Copied from Perforce
 Change: 188204
 ServerID: perforce.ravenbrook.com
 2015-09-02 21:55:24 +01:00
Gareth Rees
e7d735125f Catch-up merge from branch/2015-08-11/policy to branch/2015-08-25/tradeoff. 
Copied from Perforce
 Change: 188203
 ServerID: perforce.ravenbrook.com
 2015-09-02 21:23:23 +01:00
Gareth Rees
837818ccb4 Refactor tracequantum into tracepoll and traceadvance. (tracequantum was formerly called from arenapark, but that doesn't care about the quantum size.) 
Copied from Perforce
 Change: 188198
 ServerID: perforce.ravenbrook.com
 2015-09-02 10:50:00 +01:00
Gareth Rees
7cc5a2d8f6 Catch-up merge from branch/2015-08-11/policy to branch/2015-08-25/tradeoff. 
Copied from Perforce
 Change: 188176
 ServerID: perforce.ravenbrook.com
 2015-08-25 19:35:03 +01:00
Gareth Rees
86d6fd4d9c Catch-up merge from branch/2015-08-06/config to branch/2015-08-25/tradeoff. 
Copied from Perforce
 Change: 188175
 ServerID: perforce.ravenbrook.com
 2015-08-25 19:32:55 +01:00
Gareth Rees
b5edbd02ce Use sizeisarenagrains macro. 
Copied from Perforce
 Change: 188172
 ServerID: perforce.ravenbrook.com
 2015-08-25 15:03:35 +01:00
Gareth Rees
3274a4fba6 Condition >= 1.0 is needed to ensure division can't overflow. 
Copied from Perforce
 Change: 188170
 ServerID: perforce.ravenbrook.com
 2015-08-25 13:50:19 +01:00
Gareth Rees
dd676e2919 New functions policypoll and policypollagain. 
Update design.strategy.

Copied from Perforce
 Change: 188165
 ServerID: perforce.ravenbrook.com
 2015-08-25 13:27:17 +01:00
Gareth Rees
46280a07ab New function policycollectiontime estimates the time needed to collect the arena. mysterious constants are given names and moved to config.h. 
Copied from Perforce
 Change: 188160
 ServerID: perforce.ravenbrook.com
 2015-08-21 15:27:14 +01:00
Gareth Rees
b7cf9d1ba9 Fix broken link to design/thread-safety 
Copied from Perforce
 Change: 188158
 ServerID: perforce.ravenbrook.com
 2015-08-21 11:20:20 +01:00
Gareth Rees
a4beea6f11 Prefer avert(type, value) to aver(typecheck(value)). 
Copied from Perforce
 Change: 188157
 ServerID: perforce.ravenbrook.com
 2015-08-21 11:14:27 +01:00
Gareth Rees
ca71b6dbe6 New function policycondemnchain. 
Copied from Perforce
 Change: 188156
 ServerID: perforce.ravenbrook.com
 2015-08-21 11:01:00 +01:00
Gareth Rees
32acad85ea New function policystarttrace decides whether to start a trace. 
Copied from Perforce
 Change: 188154
 ServerID: perforce.ravenbrook.com
 2015-08-20 16:57:33 +01:00
Gareth Rees
2097678a37 New module policy.c. 
Copied from Perforce
 Change: 188152
 ServerID: perforce.ravenbrook.com
 2015-08-19 15:03:47 +01:00
Gareth Rees
1e2d5dd4d8 Catch-up merge from master sources to branch/2015-08-06/config. 
Copied from Perforce
 Change: 188146
 ServerID: perforce.ravenbrook.com
 2015-08-14 16:35:07 +01:00
Gareth Rees
c8644421da Merge branch/2015-08-10/arena-create into the master sources. 
Copied from Perforce
 Change: 188144
 ServerID: perforce.ravenbrook.com
 2015-08-14 10:57:06 +01:00
Gareth Rees
008ac14cdb Improve organization and naming of arena's free land initialization and finish code, following review by nb <https://info.ravenbrook.com/mail/2015/08/11/15-52-34/0/>. 
Copied from Perforce
 Change: 188143
 ServerID: perforce.ravenbrook.com
 2015-08-14 10:30:16 +01:00
Gareth Rees
2b0baf899a Address review comments from nb in <https://info.ravenbrook.com/mail/2015/08/10/15-57-46/0/> 
Copied from Perforce
 Change: 188115
 ServerID: perforce.ravenbrook.com
 2015-08-10 18:55:16 +01:00
Gareth Rees
b5f1802c6b Apply commit limit (and spare commit limit) during arena creation, to avoid exceeding the limit and then discovering that we've done so. 
Add test case for arena hitting commit limit during creation.

Copied from Perforce
 Change: 188106
 ServerID: perforce.ravenbrook.com
 2015-08-10 15:27:26 +01:00
Gareth Rees
56e56e4ff4 Catch-up merge from branch/2015-08-10/arena-create to branch/2015-08-06/config. 
Copied from Perforce
 Change: 188104
 ServerID: perforce.ravenbrook.com
 2015-08-10 12:49:36 +01:00
Gareth Rees
a834298be6 Tear down arena correctly if controlinit fails. 
Copied from Perforce
 Change: 188100
 ServerID: perforce.ravenbrook.com
 2015-08-10 11:43:17 +01:00
Gareth Rees
c966e6c33e Correct the test for too-small client arena sizes. 
Add automated test case for client arenas with small sizes.

Copied from Perforce
 Change: 188099
 ServerID: perforce.ravenbrook.com
 2015-08-10 11:41:58 +01:00
Gareth Rees
84347b9bbe Merge branch/2014-09-29/reserved into the master sources. 
Copied from Perforce
 Change: 188090
 ServerID: perforce.ravenbrook.com
 2015-08-07 16:33:43 +01:00
Gareth Rees
9863533bfc The primary chunk is always the last chunk to be removed, so assert that. review suggestion from rb; see <https://info.ravenbrook.com/mail/2015/08/07/13-56-51/0/> 
Copied from Perforce
 Change: 188089
 ServerID: perforce.ravenbrook.com
 2015-08-07 16:14:50 +01:00
Gareth Rees
098b4da32d New function mps_arena_configure provides keyword argument interface to changing the properties of an arena. 
New keyword arguments MPS_KEY_ARENA_COMMIT_LIMIT and MPS_KEY_SPARE_ARENA_COMMIT_LIMIT can be passed to mps_arena_create_k or mps_arena_configure.
Deprecate mps_arena_commit_limit_set and mps_arena_spare_commit_limit_set.

Copied from Perforce
 Change: 188085
 ServerID: perforce.ravenbrook.com
 2015-08-06 17:02:51 +01:00
Richard Brooksby
a555f2d348 Clarifying situations in which arenaaccess might find the barrier already down. see <https://info.ravenbrook.com/mail/2015/07/14/15-08-55/0/>. 
Copied from Perforce
 Change: 188033
 ServerID: perforce.ravenbrook.com
 2015-07-14 17:18:00 +01:00
Gareth Rees
413a36fbcf Fix comment (function is named vmarenamap, not vmarenamap). 
Copied from Perforce
 Change: 187965
 ServerID: perforce.ravenbrook.com
 2015-06-19 12:01:01 +01:00
Gareth Rees
7aa39ee1b7 The table of references passed to mps_root_create_table must be word-aligned. 
Explain why mps_root_create_fmt doesn't check the alignment of base and limit.

Copied from Perforce
 Change: 187947
 ServerID: perforce.ravenbrook.com
 2015-06-15 22:12:42 +01:00
Gareth Rees
b964293c36 The stack pointer passed to mps_root_create_reg must be word-aligned. 
Copied from Perforce
 Change: 187946
 ServerID: perforce.ravenbrook.com
 2015-06-15 22:11:48 +01:00
Gareth Rees
7cc3d6c9db Explain why ldadd and ldisstale don't check that the address belongs to the arena, and don't check the alignment of the address. 
Copied from Perforce
 Change: 187945
 ServerID: perforce.ravenbrook.com
 2015-06-15 22:10:19 +01:00
Gareth Rees
9c79d09d0c If mvinit fails, ensure that its block pool is finished. 
Copied from Perforce
 Change: 187940
 ServerID: perforce.ravenbrook.com
 2015-06-15 18:11:32 +01:00
Gareth Rees
8e721094a4 Use testrun -s suite when running from xcode. 
Copied from Perforce
 Change: 187938
 ServerID: perforce.ravenbrook.com
 2015-06-15 17:20:27 +01:00
Gareth Rees
7ff6169818 Fix cross-references. 
Copied from Perforce
 Change: 187791
 ServerID: perforce.ravenbrook.com
 2015-03-19 10:59:38 +00:00
Gareth Rees
aba1b6befd Todo was done: replace it with cross-reference to design. 
Copied from Perforce
 Change: 187788
 ServerID: perforce.ravenbrook.com
 2015-03-18 20:54:28 +00:00