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229 commits

Author SHA1 Message Date
Richard Brooksby
4204f99d67 Moving quicksort's workspace off the stack to limit mps stack usage. 
Copied from Perforce
 Change: 190332
 ServerID: perforce.ravenbrook.com
 2016-03-23 13:47:55 +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
a03174304d Tearing down shield correctly. 
Copied from Perforce
 Change: 190225
 ServerID: perforce.ravenbrook.com
 2016-03-20 01:01:54 +00:00
Richard Brooksby
e09dbaab0f Promoting shield to first class structure. 
Copied from Perforce
 Change: 190219
 ServerID: perforce.ravenbrook.com
 2016-03-20 00:32:43 +00:00
Richard Brooksby
20a34ca17f Importing good random number generator from testlib for use in quicksort and perhaps later in cuckoo hashing. 
Copied from Perforce
 Change: 190191
 ServerID: perforce.ravenbrook.com
 2016-03-19 08:57:27 +00:00
Richard Brooksby
eb8b31f059 Tidying up quicksort into an mpm utility. 
Copied from Perforce
 Change: 190171
 ServerID: perforce.ravenbrook.com
 2016-03-17 19:26:45 +00:00
Richard Brooksby
9583c0f68a Merging branch mps/branch/2016-03-13/without-reservation into master sources. 
Copied from Perforce
 Change: 190106
 ServerID: perforce.ravenbrook.com
 2016-03-15 13:19:27 +00:00
Richard Brooksby
d4a055f70b Merging branch/2016-03-12/pause into the master sources. 
Copied from Perforce
 Change: 190053
 ServerID: perforce.ravenbrook.com
 2016-03-15 06:31:08 +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
07987ab579 Eliminating withreservoirpermit and all its variants. 
Copied from Perforce
 Change: 190005
 ServerID: perforce.ravenbrook.com
 2016-03-13 21:04:01 +00:00
Richard Brooksby
ca7dcd913e Basic removal of the reservoir pool from code and design. 
Copied from Perforce
 Change: 190000
 ServerID: perforce.ravenbrook.com
 2016-03-13 20:32:24 +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
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
Richard Brooksby
e168936d79 Catch-up merge from master sources to branch/2016-03-01/closure-size. 
Copied from Perforce
 Change: 189728
 ServerID: perforce.ravenbrook.com
 2016-03-08 09:13:35 +00:00
Richard Brooksby
aa0412e071 Removing the mostly unused size component of the closure convention. 
Copied from Perforce
 Change: 189503
 ServerID: perforce.ravenbrook.com
 2016-03-01 17:20:50 +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
Richard Brooksby
998a11b45a Catch-up merge from master sources to branch/2015-09-04/stack. 
Copied from Perforce
 Change: 189370
 ServerID: perforce.ravenbrook.com
 2016-02-27 00:54:00 +00:00
Richard Brooksby
a3efd2d694 Catch-up merge from branch/2015-08-06/config to remove arenaconfigure. 
Copied from Perforce
 Change: 189335
 ServerID: perforce.ravenbrook.com
 2016-02-25 22:59:06 +00:00
Richard Brooksby
6a15535df6 Removing unused function arenascannable. 
Reinstate when needed. See <https://info.ravenbrook.com/mail/2016/02/17/13-05-54/0/>.

Copied from Perforce
 Change: 189292
 ServerID: perforce.ravenbrook.com
 2016-02-25 17:09:09 +00:00
Richard Brooksby
8a4e5ab290 Moving scanning accounting to tracescanarea and creating analogous formatscan. 
Copied from Perforce
 Change: 189325
 ServerID: perforce.ravenbrook.com
 2016-02-19 12:11:50 +00:00
Richard Brooksby
266228be7c Renaming "bottom" and "top" of stack to "cold" and "hot" end, to prevent confusion about descending stacks. 
Correcting design documentation relating to stacks.
Referencing hot and cold end concepts from glossary entry for control stacks.

Copied from Perforce
 Change: 189320
 ServerID: perforce.ravenbrook.com
 2016-02-18 23:49:58 +00:00
Richard Brooksby
0f8bee3762 Detabifying code and restructuredtext files. 
Copied from Perforce
 Change: 189309
 ServerID: perforce.ravenbrook.com
 2016-02-18 19:58:13 +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
Richard Brooksby
8140fab4dd Creating general mps_root_create_thread and renaming mps_root_create_stack as a specialised version of it, mps_root_create_thread_tagged. 
Copied from Perforce
 Change: 189198
 ServerID: perforce.ravenbrook.com
 2016-02-15 19:12:59 +00:00
Richard Brooksby
a759889048 Reimplementing mps_root_create_reg in terms of rootcreatethreadtagged and abolishing rootreg. yay! 
Copied from Perforce
 Change: 189197
 ServerID: perforce.ravenbrook.com
 2016-02-15 18:19:30 +00:00
Richard Brooksby
53ce574bfe Renaming rootreg_masked to rootthread_tagged with corresponding changes to other identifiers. 
Copied from Perforce
 Change: 189196
 ServerID: perforce.ravenbrook.com
 2016-02-15 17:57:06 +00:00
Richard Brooksby
2ad27f73b1 Lifting stack and register area scanner into mps interface to allow generalisation of stack format. 
Copied from Perforce
 Change: 189195
 ServerID: perforce.ravenbrook.com
 2016-02-15 17:46:45 +00:00
Richard Brooksby
b04dbd8677 Generalising roottable to rootarea and using it to implement mps_root_create_table_* and mps_root_create_area. 
Copied from Perforce
 Change: 189193
 ServerID: perforce.ravenbrook.com
 2016-02-15 17:30:45 +00:00
Richard Brooksby
3b33c0808b Generalising roottable_masked to rootarea_tagged and lifting scanner assumption. 
Copied from Perforce
 Change: 189192
 ServerID: perforce.ravenbrook.com
 2016-02-15 16:56:42 +00:00
Richard Brooksby
16bde84a68 Generalising tracescanarea to be a checking wrapper for all area scanners. 
Copied from Perforce
 Change: 189190
 ServerID: perforce.ravenbrook.com
 2016-02-15 15:44:57 +00:00
Richard Brooksby
c8fed5bb8d Renaming tracescanareamasked to tracescanareatagged 
Copied from Perforce
 Change: 189133
 ServerID: perforce.ravenbrook.com
 2016-02-11 20:39:57 +00:00
Richard Brooksby
9c0c184728 Adding mps_root_create_table_tagged as an interface to more generally tagged roots. 
Deprecating the less general mps_root_create_table_masked.

Copied from Perforce
 Change: 189131
 ServerID: perforce.ravenbrook.com
 2016-02-11 20:28:39 +00:00
Richard Brooksby
a0e001c000 Catch up merge from master sources. 
Copied from Perforce
 Change: 189130
 ServerID: perforce.ravenbrook.com
 2016-02-10 21:10:25 +00:00
Richard Brooksby
eac348d664 Catch-up merge from masters. 
Copied from Perforce
 Change: 188921
 ServerID: perforce.ravenbrook.com
 2016-01-19 16:22:39 +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
0a927608dc 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
2514663693 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
881c594458 Correct type for rootcreateregmasked. 
Copied from Perforce
 Change: 188233
 ServerID: perforce.ravenbrook.com
 2015-09-04 12:28:49 +01:00
Gareth Rees
edf30c06b4 New function mps_root_create_reg_masked applies a mask and pattern test to all words in registers and on the stack when scanning them. this supports tagged references in these locations. 
Consistently use the type "Word *" for pointers into the stack or into saved registers.
Remove TraceScanAreaTagged.

Copied from Perforce
 Change: 188231
 ServerID: perforce.ravenbrook.com
 2015-09-04 12:22:03 +01:00
Gareth Rees
7bf1664f5e 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
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
bea6e91d73 Accumulate trace metrics in arenapark. 
Copied from Perforce
 Change: 188208
 ServerID: perforce.ravenbrook.com
 2015-09-03 11:50:28 +01:00
Gareth Rees
3b0e0c2aa5 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
309d42e408 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
9a303f6935 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
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
9dd49aa48e 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
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