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Author SHA1 Message Date
Gareth Rees
326a8c6bbd Generation's computed mortality has denominator of condemned memory (not new memory), so use the same denominator when predicting the mortality for a trace. 
Simpler to compute predicted mortality as casualties/condemned instead of 1 - survivors/condemned.

Copied from Perforce
 Change: 194634
 2018-07-13 12:07:54 +01:00
Gareth Rees
6684c5d10f Catch-up merge from master sources at changelevel 194628. 
Copied from Perforce
 Change: 194631
 2018-07-13 11:28:36 +01:00
Gareth Rees
5bd92654df Improve describe output for generations. 
Must take SegBase(seg) before reclaiming the segment in case it gets destroyed.

Copied from Perforce
 Change: 194624
 2018-07-12 09:47:29 +01:00
Gareth Rees
9410be10b5 Reclaim the same generations that were condemned. 
Copied from Perforce
 Change: 194621
 2018-07-12 07:51:04 +01:00
Gareth Rees
c3fd9d5ba7 Represent the set of generations condemned for a trace. 
Eliminate duplication between policyCondemnChain and traceCondemnAll.
Compute better mortality estimate for collection of the world.

Copied from Perforce
 Change: 194611
 2018-07-11 21:14:43 +01:00
Gareth Rees
3366ef1bc2 Catch-up merge from master sources at changelevel 194449 to branch/2018-06-18/mrgseg. 
Copied from Perforce
 Change: 194452
 2018-07-05 16:22:24 +01:00
Gareth Rees
66c9375253 Restore fixclosure together with explanation. 
Copied from Perforce
 Change: 194314
 2018-06-29 13:54:55 +01:00
Gareth Rees
a5ddfca39b New generic function segflip allows the segment to decide how to handle a trace that’s about to flip. 
Copied from Perforce
 Change: 194000
 2018-06-20 10:23:16 +01:00
Gareth Rees
6e53fd80e0 Remove unused variable pool. 
Copied from Perforce
 Change: 193034
 ServerID: perforce.ravenbrook.com
 2017-03-30 09:19:54 +01:00
Gareth Rees
45e05c62cd Move fix and fixemergency methods from pool class to segment class. 
Copied from Perforce
 Change: 193023
 ServerID: perforce.ravenbrook.com
 2017-03-30 08:09:14 +01:00
Gareth Rees
10e9331822 Remove unused fixclosure field from trace and scanstate structures. 
Copied from Perforce
 Change: 193018
 ServerID: perforce.ravenbrook.com
 2017-03-30 07:14:10 +01:00
Gareth Rees
1cb3265e80 Move scan method from pool class to segment class. 
Copied from Perforce
 Change: 193012
 ServerID: perforce.ravenbrook.com
 2017-03-29 19:17:17 +01:00
Gareth Rees
de269de563 Move reclaim method from pool class to segment class. 
Copied from Perforce
 Change: 193007
 ServerID: perforce.ravenbrook.com
 2017-03-29 17:13:45 +01:00
Gareth Rees
bfe43c367e Move whiten method from pool class to segment class. 
Copied from Perforce
 Change: 193002
 ServerID: perforce.ravenbrook.com
 2017-03-29 16:22:14 +01:00
Gareth Rees
826b74a030 Move greyen method from pool class to segment class. 
Copied from Perforce
 Change: 192997
 ServerID: perforce.ravenbrook.com
 2017-03-29 15:58:32 +01:00
Gareth Rees
6dabd6de2b Move the blacken method from the pool class to the segment class. 
Copied from Perforce
 Change: 192994
 ServerID: perforce.ravenbrook.com
 2017-03-29 15:32:17 +01:00
Gareth Rees
9f505c501d Remove unused pool class methods tracebegin and traceend. 
Remove unused event AMCTraceEnd.
The fixEmergency method must have the same type as the fix method because of how they are used.

Copied from Perforce
 Change: 192636
 ServerID: perforce.ravenbrook.com
 2016-10-19 14:07:20 +01:00
Gareth Rees
d83934de69 Remove return statements that have no effect. 
Copied from Perforce
 Change: 192529
 ServerID: perforce.ravenbrook.com
 2016-10-13 15:17:50 +01:00
Gareth Rees
a0db5c7bfe Catch-up merge from master sources to branch/2016-04-13/mortality. 
Copied from Perforce
 Change: 192192
 ServerID: perforce.ravenbrook.com
 2016-09-05 16:17:04 +01:00
Gareth Rees
a42ef06b8d Catch-up merge from master sources to branch/2016-04-12/job004000. 
Copied from Perforce
 Change: 192187
 ServerID: perforce.ravenbrook.com
 2016-09-05 16:01:17 +01:00
Gareth Rees
c737a08bc2 Fix assertion text in the manual. 
Place a cross-reference by each assertion the appears in the manual, to assist in keeping the manual up to date.

Copied from Perforce
 Change: 192097
 ServerID: perforce.ravenbrook.com
 2016-09-02 14:11:08 +01:00
Gareth Rees
0297b380b9 Clear the emergency before removing the trace from busytraces, to avoid violating <code/global.c#emergency.invariant>. 
Copied from Perforce
 Change: 191774
 ServerID: perforce.ravenbrook.com
 2016-05-02 13:06:07 +01:00
Gareth Rees
73734325d5 Catch-up merge from branch/2016-04-12/job004000 to branch/2016-04-13/mortality. 
Copied from Perforce
 Change: 191513
 ServerID: perforce.ravenbrook.com
 2016-04-21 18:20:54 +01:00
Gareth Rees
8868a011a7 Catch-up merge from master sources to branch/2016-04-12/job004000. 
Copied from Perforce
 Change: 191429
 ServerID: perforce.ravenbrook.com
 2016-04-21 10:52:18 +01:00
Gareth Rees
0d0eb93f01 Merge branch/2016-04-19/job004011. 
Copied from Perforce
 Change: 191374
 ServerID: perforce.ravenbrook.com
 2016-04-20 16:00:43 +01:00
Gareth Rees
c1aeb1f67a Ensure that at most one collection of the world can be started in a call to arenapoll. this avoids a loop if the live set is large enough to provoke the "dynamic criterion". 
Copied from Perforce
 Change: 191274
 ServerID: perforce.ravenbrook.com
 2016-04-19 18:17:09 +01:00
Gareth Rees
b6f2ae3d67 Remove tracestatcondemn event -- contains no information not already emitted by the tracestart event. 
Copied from Perforce
 Change: 191185
 ServerID: perforce.ravenbrook.com
 2016-04-16 12:41:38 +01:00
Gareth Rees
aabe4992eb Compile out statistic declarations in non-statistical varieties (at the cost of some syntax checking). 
Add some missing STATISTIC guards where statistics are used.
Add design documentation.
Avoid unnecessary distinction between STATISTIC and STATISTIC_STAT (both result in statements).

Copied from Perforce
 Change: 191178
 ServerID: perforce.ravenbrook.com
 2016-04-16 12:07:10 +01:00
Gareth Rees
d40145c046 Maintain a moving average of the mortality of each generation. 
Copied from Perforce
 Change: 191081
 ServerID: perforce.ravenbrook.com
 2016-04-13 15:19:50 +01:00
Gareth Rees
749226e23a Handle failed traceaddwhite in policycondemnchain and arenarootswalk. 
Copied from Perforce
 Change: 191040
 ServerID: perforce.ravenbrook.com
 2016-04-12 20:58:33 +01:00
Gareth Rees
c33b1f49e8 Condemn only the segments in the selected generations (not segments that happen to share a zone with any segment ever allocated in the generation). 
Copied from Perforce
 Change: 191034
 ServerID: perforce.ravenbrook.com
 2016-04-12 19:42:03 +01:00
Gareth Rees
470b157620 Fix mistake (need trace->arena here). 
Copied from Perforce
 Change: 190948
 ServerID: perforce.ravenbrook.com
 2016-04-11 19:47:11 +01:00
Gareth Rees
6ee4c8534d In change 188204 we avoided creating and progressing traces with nothing condemned. but traces had one other effect: they called arenacompact via tracereclaim. restore the arenacompact for traces that failed to condemn anything. 
Copied from Perforce
 Change: 190931
 ServerID: perforce.ravenbrook.com
 2016-04-11 18:08:08 +01:00
Richard Brooksby
27e38efbda Don't allow pools to whiten segments without condemning objects, so that a condemned size of zero implies no white segments, allowing quick trace destruction. 
Copied from Perforce
 Change: 190607
 ServerID: perforce.ravenbrook.com
 2016-03-31 23:41:46 +01:00
Richard Brooksby
cae4514c1b Merging branch/2016-03-13/defer-write-barrier into master sources. 
Copied from Perforce
 Change: 190380
 ServerID: perforce.ravenbrook.com
 2016-03-24 12:07:20 +00:00
Richard Brooksby
d161c0e4ee Forgot shieldhold/shieldrelease in tracecondemnzones. caught by hot builds of amcssth. 
Copied from Perforce
 Change: 190344
 ServerID: perforce.ravenbrook.com
 2016-03-23 15:48:58 +00:00
Richard Brooksby
5bc87114ea Counting shield holds and releases, to ensure they are nested correctly. 
Counting the number of unsynced segments in order to check consistency.
Moving the extra shield hold for request.dylan.160098 around actual whitening, and adding a matching shield release.

Copied from Perforce
 Change: 190321
 ServerID: perforce.ravenbrook.com
 2016-03-23 11:59:57 +00:00
Richard Brooksby
cf0ac842bc Reorganising shield design and updating. 
Renaming ShieldSuspend to ShieldHold and ShieldResume to ShieldRelease to reduce confusion.

Copied from Perforce
 Change: 190320
 ServerID: perforce.ravenbrook.com
 2016-03-23 08:20:29 +00:00
Richard Brooksby
fde3757bac Tidying up and adding cross references to shiny new design document. 
Copied from Perforce
 Change: 190213
 ServerID: perforce.ravenbrook.com
 2016-03-19 23:07:53 +00:00
Richard Brooksby
a6f2928335 Removing bogus todo. 
Copied from Perforce
 Change: 190212
 ServerID: perforce.ravenbrook.com
 2016-03-19 19:40:00 +00:00
Richard Brooksby
ed69abbd66 Deferring non-urgent fixmes to todos. 
Copied from Perforce
 Change: 190190
 ServerID: perforce.ravenbrook.com
 2016-03-19 08:34:30 +00:00
Richard Brooksby
7ab4a5c7cf Catch-up merge from master sources to branch/2016-03-13/defer-write-barrier. 
Copied from Perforce
 Change: 190175
 ServerID: perforce.ravenbrook.com
 2016-03-17 20:14:47 +00:00
Richard Brooksby
8df13d0bff Shield cache that grows. improving commentary. 
Copied from Perforce
 Change: 190160
 ServerID: perforce.ravenbrook.com
 2016-03-17 16:55:14 +00:00
Gareth Rees
e034e7aeea Address points made by rb in review <https://info.ravenbrook.com/mail/2016/03/14/18-48-19/0/> 
Copied from Perforce
 Change: 190031
 ServerID: perforce.ravenbrook.com
 2016-03-14 20:10:14 +00:00
Richard Brooksby
47dbed0eee Tidying up naming of write barrier deferral. 
Copied from Perforce
 Change: 189960
 ServerID: perforce.ravenbrook.com
 2016-03-13 13:26:24 +00:00
Richard Brooksby
17b529001b Fixing incomplete merge that missed out disabling the write barrier, but corrupted the segment summaries. 
Copied from Perforce
 Change: 189954
 ServerID: perforce.ravenbrook.com
 2016-03-13 12:16:01 +00:00
Richard Brooksby
06af849502 Integrating write barrier deferral changes from branch/2014-08-18/non-incremental. 
p4 integrate branch/2014-08-18/non-incremental/...@186975,186988 branch/2016-03-13/defer-write-barrier/...

Copied from Perforce
 Change: 189943
 ServerID: perforce.ravenbrook.com
 2016-03-13 11:27:21 +00:00
Richard Brooksby
275770ed43 Catch-up merge from master sources to branch/2015-08-25/tradeoff. 
Copied from Perforce
 Change: 189891
 ServerID: perforce.ravenbrook.com
 2016-03-12 15:13:15 +00:00
Gareth Rees
973f5369e1 Rename chain.h to locus.h, for consistency with other modules, where the interface has the same name as the implemention. 
Copied from Perforce
 Change: 189682
 ServerID: perforce.ravenbrook.com
 2016-03-06 18:56:32 +00:00
Richard Brooksby
07a1290f3e Eliminating closure_size from area scanners and root registration functions, as it isn't all that useful. 
Copied from Perforce
 Change: 189491
 ServerID: perforce.ravenbrook.com
 2016-03-01 15:59:06 +00:00