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196 commits

Author SHA1 Message Date
Gareth Rees
be5db32120 Lockisheld implementation for generic ("ansi") locks. 
When CONFIG_THREAD_SINGLE is defined, use the generic lock module rather than compiling out all lock calls via lock.h. (Otherwise test cases that check LockIsHeld will fail.)

Copied from Perforce
 Change: 192254
 ServerID: perforce.ravenbrook.com
 2016-09-09 11:01:04 +01:00
Gareth Rees
cb41b91f19 Remove support for linux 2.4 and 2.5 (these versions used linuxthreads). linux is now supported from version 2.6 onwards (these versions use posix threads). 
Copied from Perforce
 Change: 192240
 ServerID: perforce.ravenbrook.com
 2016-09-08 11:36:02 +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
6932a51b2f New preprocessor constants config_pthreadext_sigsuspend and config_pthreadext_sigresume for configuring the signals used to suspend and resume threads. 
Copied from Perforce
 Change: 192122
 ServerID: perforce.ravenbrook.com
 2016-09-04 13:55:39 +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
Richard Brooksby
4be15a5b0b Catch-up merge from master sources to branch/2016-04-08/protidying. 
Copied from Perforce
 Change: 191471
 ServerID: perforce.ravenbrook.com
 2016-04-21 14:46:10 +01:00
Gareth Rees
8a19bd5e8c Initialize arena->zoneshift to zoneshiftunset (which is not a valid shift) and modify the arena checking to spot this value. previously a default shift value (namely 20) was used, but this value was bogus as the zone shift is not determined until the class initialization runs. 
Copied from Perforce
 Change: 191370
 ServerID: perforce.ravenbrook.com
 2016-04-20 15:51:16 +01:00
Richard Brooksby
033aeda023 Using the address of the class as its id as a step to eliminating classdef.h. 
Copied from Perforce
 Change: 191234
 ServerID: perforce.ravenbrook.com
 2016-04-19 14:21:29 +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
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
7a7913786c Responding to review by gdr <https://info.ravenbrook.com/mail/2016/03/21/20-20-15/0/>. 
Copied from Perforce
 Change: 190307
 ServerID: perforce.ravenbrook.com
 2016-03-22 16:32:10 +00:00
Richard Brooksby
b97bd74013 Renaming shield cache to shield queue. 
Copied from Perforce
 Change: 190220
 ServerID: perforce.ravenbrook.com
 2016-03-20 00:46:59 +00:00
Richard Brooksby
2469f09e6e Improving design document with references and separating ideas from current implementation. 
Copied from Perforce
 Change: 190214
 ServerID: perforce.ravenbrook.com
 2016-03-19 23:31:00 +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
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
91a08048b7 Design documentation, commentary, and code tidying. 
Copied from Perforce
 Change: 190172
 ServerID: perforce.ravenbrook.com
 2016-03-17 20:04:26 +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
Richard Brooksby
641cdc164c Catch-up merge from master sources to branch/2016-03-11/shield-coalesce. 
Copied from Perforce
 Change: 190150
 ServerID: perforce.ravenbrook.com
 2016-03-17 13:53:40 +00:00
Richard Brooksby
069dbc4e97 Justifying the default pause time. 
Copied from Perforce
 Change: 190049
 ServerID: perforce.ravenbrook.com
 2016-03-15 06:04:42 +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
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
Gareth Rees
167408b7e0 Implement pause time control. 
Copied from Perforce
 Change: 189921
 ServerID: perforce.ravenbrook.com
 2016-03-12 22:08:26 +00:00
Gareth Rees
31de518300 Catch-up merge from branch/2015-08-25/tradeoff to branch/2016-03-12/pause (to pick up the morework value in arenapoll). 
Copied from Perforce
 Change: 189918
 ServerID: perforce.ravenbrook.com
 2016-03-12 20:32:41 +00:00
Gareth Rees
f9041d9a20 Documentation and interface for pause time control (no implementation yet). 
Copied from Perforce
 Change: 189915
 ServerID: perforce.ravenbrook.com
 2016-03-12 20:25:33 +00:00
David Lovemore
dbbea04f7f Bigger shield cache, to make coalescing more useful. 
Copied from Perforce
 Change: 189872
 ServerID: perforce.ravenbrook.com
 2016-03-11 17:05:45 +00:00
Richard Brooksby
c015827c36 Catch-up merge from master sources. 
Copied from Perforce
 Change: 189265
 ServerID: perforce.ravenbrook.com
 2016-02-17 11:04:51 +00:00
Gareth Rees
aa6a027c68 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
b43a56f9b5 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
b4db3bd09f 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
1f6522bd04 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
d506458eea 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
703c1ee5f5 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
Gareth Rees
a960f642f1 Analysis justifying the value of stackprobedepth. 
Copied from Perforce
 Change: 187380
 ServerID: perforce.ravenbrook.com
 2014-10-24 10:16:28 +01:00
Gareth Rees
655e78f3be Bring ring design up to date (excepting figures). 
Add links from design documents to mail messages imported from Harlequin.

Copied from Perforce
 Change: 187067
 ServerID: perforce.ravenbrook.com
 2014-09-27 16:11:21 +01:00
Gareth Rees
7c2e271e60 Rename segpref to locuspref -- this structure describes preferences for the placement of any kind of address, not just segments. 
Add LocusPrefDescribe and use it in MVFFDescribe.

Copied from Perforce
 Change: 187061
 ServerID: perforce.ravenbrook.com
 2014-09-27 11:27:00 +01:00
David Lovemore
b4460043e6 Added more control over write barrier. in particular separated scans after a hit. 
Copied from Perforce
 Change: 186988
 ServerID: perforce.ravenbrook.com
 2014-08-27 11:21:18 +01:00
David Lovemore
46d723c9dc Added experimental control over write barrier eagerness. 
The write barrier is only raised after three unnecessary scans.

Copied from Perforce
 Change: 186975
 ServerID: perforce.ravenbrook.com
 2014-08-21 15:53:57 +01:00
David Lovemore
8c9353fe34 Add mps_key_arena_incremental option. 
Avoid read and write barrier in non-incremental mode.
Add --non-incremental option to gcbench

Copied from Perforce
 Change: 186969
 ServerID: perforce.ravenbrook.com
 2014-08-20 13:03:20 +01:00
David Lovemore
6abe840d06 set control_extend_by to 32768. 
The CONTROL_EXTEND_BY value for the extend by on the control pool was set really small (4096) on the assumption that the control pool was not heavily used. However, since we allocate Seg's in the control pool and recycle them frequently, this assumption is no longer true.

Copied from Perforce
 Change: 186832
 ServerID: perforce.ravenbrook.com
 2014-07-04 15:27:48 +01:00
Gareth Rees
37a15e8f3e Don't repeat generation sizes in the comments (they could get out of sync). 
Copied from Perforce
 Change: 186827
 ServerID: perforce.ravenbrook.com
 2014-07-04 13:58:34 +01:00
David Lovemore
358a3c5fc6 Adjust generation sizes for the default chain. 
Add release note recommending retuning of generation sizes.

Copied from Perforce
 Change: 186824
 ServerID: perforce.ravenbrook.com
 2014-07-04 13:32:45 +01:00
Gareth Rees
9d1cec7942 Ensure that the amcss test case uses a wide range of arena grain sizes (by scaling up the whole allocation). 
Remove hack from rnd_grain -- this was covering up a bug.
Base the AMC "large" segment determination on the requested object size, not the (rounded up) segment size.
Assert in the case where largeSize < extendBy: this has bad space performance.

Copied from Perforce
 Change: 186755
 ServerID: perforce.ravenbrook.com
 2014-06-30 16:07:09 +01:00
Gareth Rees
414719db23 Round up the grain size in the client arena to arena_client_grain_size (otherwise the grain might be so small that the page table uses up all the space in the chunk). 
Copied from Perforce
 Change: 186689
 ServerID: perforce.ravenbrook.com
 2014-06-19 14:10:30 +01:00
David Lovemore
392e6a056a Catch up merge from master/...@186577 
Copied from Perforce
 Change: 186582
 ServerID: perforce.ravenbrook.com
 2014-06-13 16:38:20 +01:00
Gareth Rees
a13a1aa1df Catch-up merge from master sources @186564 to branch/2014-06-11/grain. 
Copied from Perforce
 Change: 186572
 ServerID: perforce.ravenbrook.com
 2014-06-13 15:30:46 +01:00
David Lovemore
adbb265043 Updated due to gdr's review comments in mail <https://info.ravenbrook.com/mail/2014/06/13/12-46-29/0/> 
Copied from Perforce
 Change: 186569
 ServerID: perforce.ravenbrook.com
 2014-06-13 15:09:49 +01:00
Gareth Rees
5aba28db8d Rename vmgrainsize to vmpagesize (because it is in fact the operating system page size) and to avoid confusion with the arena grain size. 
Copied from Perforce
 Change: 186543
 ServerID: perforce.ravenbrook.com
 2014-06-12 17:18:50 +01:00
Gareth Rees
a74d906fc5 Need a definition of vman_grain_size. 
Copied from Perforce
 Change: 186509
 ServerID: perforce.ravenbrook.com
 2014-06-11 17:39:57 +01:00
Gareth Rees
bfb0b771dd Rename "arena alignment" to "arena grain size" to avoid confusion with ordinary structure alignment. 
Copied from Perforce
 Change: 186503
 ServerID: perforce.ravenbrook.com
 2014-06-11 17:13:03 +01:00