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187 commits

Author SHA1 Message Date
Richard Brooksby
accddda53b Condemn only visits segments in condemned zones.
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 Change: 190127
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2016-03-16 23:54:41 +00:00
Richard Brooksby
8f2fb64fb7 Falling back from white hash table to segment tree if we run out of memory for the table, guaranteeing that collection can't fail due to lack of memory.
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 Change: 190110
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2016-03-15 14:14:17 +00:00
Richard Brooksby
46f9c48f42 Merging branch/2016-03-13/without-reservation into branch/2016-03-15/sunrise in order to remove dependency on tractp.
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 Change: 190099
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2016-03-15 11:48:16 +00:00
Richard Brooksby
0d9be14198 Replacing segfirst/segnext with tree traversal in tracestart.
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 Change: 190082
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2016-03-15 11:16:07 +00:00
Richard Brooksby
dfdef1c2a0 Replacing segfirst/segnext with tree traversal in arenaexposeremember.
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 Change: 190081
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2016-03-15 11:16:07 +00:00
Richard Brooksby
9ed7d6ef96 Replacing segfirst/segnext loops with tree traversals in condemn and reclaim.
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 Change: 190080
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2016-03-15 11:16:07 +00:00
Richard Brooksby
5abef94f8d Replace fix segment lookup with existing hash table.
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 Change: 190079
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2016-03-15 11:16:07 +00:00
Richard Brooksby
215ceecb51 Eliminating segment pointer from tract, and loops over tracts when creating and destroying segments.
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 Change: 190078
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2016-03-15 11:16:07 +00:00
Richard Brooksby
735d099d31 Removing white field from tracts.
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 Change: 190075
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2016-03-15 11:16:07 +00:00
Gareth Rees
2a3c4e0590 Address points made by rb in review <https://info.ravenbrook.com/mail/2016/03/14/18-48-19/0/>
Copied from Perforce
 Change: 190031
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2016-03-14 20:10:14 +00:00
Richard Brooksby
32d42e00cd Catch-up merge from master sources to branch/2015-08-25/tradeoff.
Copied from Perforce
 Change: 189891
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2016-03-12 15:13:15 +00:00
Gareth Rees
4623be4a03 Rename chain.h to locus.h, for consistency with other modules, where the interface has the same name as the implemention.
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 Change: 189682
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2016-03-06 18:56:32 +00:00
Richard Brooksby
14774ccd06 Eliminating closure_size from area scanners and root registration functions, as it isn't all that useful.
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 Change: 189491
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2016-03-01 15:59:06 +00:00
Richard Brooksby
3804af1803 Catch-up merge from master sources to branch/2015-09-04/stack.
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 Change: 189370
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2016-02-27 00:54:00 +00:00
Richard Brooksby
078ac268d5 Catch-up merge from branch/2015-08-06/config to remove arenaconfigure.
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 Change: 189335
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2016-02-25 22:59:06 +00:00
Richard Brooksby
b929dbbe4c Moving scanning accounting to tracescanarea and creating analogous formatscan.
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 Change: 189325
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2016-02-19 12:11:50 +00:00
Richard Brooksby
4487895475 Detabifying code and restructuredtext files.
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 Change: 189309
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2016-02-18 19:58:13 +00:00
Richard Brooksby
f8341520c2 Catch-up merge from master sources.
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 Change: 189265
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2016-02-17 11:04:51 +00:00
Richard Brooksby
ae80015f4b Lifting assumptions about area scanners closer to interface.
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 Change: 189191
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2016-02-15 16:46:09 +00:00
Richard Brooksby
7df6c140f8 Generalising tracescanarea to be a checking wrapper for all area scanners.
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 Change: 189190
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2016-02-15 15:44:57 +00:00
Richard Brooksby
85a2d8683f Lifting and generalising area scanners to allow flexible tagging schemes.
Copied from Perforce
 Change: 189189
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2016-02-15 15:30:08 +00:00
Richard Brooksby
0277d49079 Lifting area scanners into client-side code.
These versions also produce tighter loops under Clang.

Copied from Perforce
 Change: 189188
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2016-02-14 00:57:28 +00:00
Richard Brooksby
27730a09d7 Fixing misuse of format header offset to decode tagging. see <https://info.ravenbrook.com/mail/2016/02/11/17-20-12/0/> point 5.
Copied from Perforce
 Change: 189134
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2016-02-11 21:32:41 +00:00
Richard Brooksby
31870a9b95 Renaming tracescanareamasked to tracescanareatagged
Copied from Perforce
 Change: 189133
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2016-02-11 20:39:57 +00:00
Richard Brooksby
aff58a3f60 Catch up merge from master sources.
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 Change: 189130
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2016-02-10 21:10:25 +00:00
Gareth Rees
144990c99d Add accesssetcheck and check accessset arguments.
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 Change: 188251
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2015-09-04 20:15:36 +01:00
Gareth Rees
ea6250898a 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
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2015-09-04 12:22:03 +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.
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 Change: 188218
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2015-09-03 15:51:37 +01:00
Gareth Rees
1437590cb3 Move the arenaemergency test up to policypollagain.
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 Change: 188217
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2015-09-03 15:39:39 +01:00
Gareth Rees
68489eec1e Move the clearing of the emergency flag down into tracedestroy{init,finish}.
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 Change: 188216
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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
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2015-09-03 13:01:55 +01:00
Gareth Rees
85595290d3 Accumulate trace metrics in arenapark.
Copied from Perforce
 Change: 188208
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2015-09-03 11:50:28 +01:00
Gareth Rees
f1441b58d1 Don't start a trace unless there's work to do.
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 Change: 188204
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2015-09-02 21:55:24 +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.)
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 Change: 188198
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2015-09-02 10:50:00 +01:00
Gareth Rees
32acad85ea New function policystarttrace decides whether to start a trace.
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 Change: 188154
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2015-08-20 16:57:33 +01:00
Gareth Rees
23dda3d644 New constant rankmin gives the minimum rank. use this (rather than 0 or rankambig) to better express the intention.
Copied from Perforce
 Change: 187156
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2014-10-07 22:31:12 +01:00
Gareth Rees
2d0f425428 Ensure that code of the form if (condition) statement; is split over two lines, so that it is possible to set a breakpoint on the statement in a debugger.
This change was agreed in 1997 (see <https://info.ravenbrook.com/project/mps/mail/1997/08/19/13-44/0.txt>), so it's about time it was implemented.

Copied from Perforce
 Change: 187071
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2014-09-27 22:57:02 +01:00
Gareth Rees
b0d20ed749 Catch-up merge from master sources @186540 to branch/2014-05-17/chunk-tree.
Copied from Perforce
 Change: 186546
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2014-06-12 17:55:16 +01:00
Gareth Rees
c71e35f3c1 Catch-up merge from masters sources @186519 to branch/2014-04-17/describe.
Copied from Perforce
 Change: 186526
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2014-06-12 13:45:22 +01:00
Gareth Rees
9ed5301da2 Refer to rb's e-mail for potential optimization.
Copied from Perforce
 Change: 186524
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2014-06-12 12:18:30 +01:00
Gareth Rees
c2c38dedcc Catch-up merge from master sources @186481 to branch/2014-05-17/chunk-tree.
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 Change: 186491
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2014-06-11 13:52:31 +01:00
Gareth Rees
6aae3bfb23 Catch-up merge from master sources @186213 to branch/2014-05-17/chunk-tree.
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 Change: 186214
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2014-05-20 19:11:50 +01:00
Gareth Rees
5f84d4c3db Clarify tracefix logic by unwinding the nested conditions.
Change the arena's chunk tree from a splay tree to an ordinary tree (so that it's not possible to accidentally splay it and leave it unbalanced).
New function TreeFindNext allows us to implement TractFirst and TractNext without having to splay the tree.
Make sure all operations on the chunk tree leave it balanced. But don't balance the tree directly in ChunkFinish() because this is only ever called in a loop where multiple chunks are being deleted from the tre. Instead use the sequence TreeToVine -- iterate and delete -- TreeBalance. The new macro TREE_DESTROY assists with this.
No need any more for ArenaIsReservedAddr, CHUNK_OF_ADDR, TRACT_OF_ADDR.
Update design documentation.

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 Change: 186212
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2014-05-20 18:12:37 +01:00
Gareth Rees
b2f8c11ebb Catch-up merge from master sources @186174 to branch/2014-04-30/poolgen.
Copied from Perforce
 Change: 186185
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2014-05-19 14:59:19 +01:00
Gareth Rees
a4611cb411 Catch-up merge from master sources @186077 to branch/2014-04-23/awl.
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 Change: 186110
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2014-05-15 10:17:41 +01:00
Gareth Rees
95ee3a4568 Check the trace argument to tracequantum.
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 Change: 186027
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2014-05-12 13:35:21 +01:00
Gareth Rees
920a58cc29 Improve formatting of poolgendescribe and tracedescribe.
Add ArenaDescribe calls to amcss and finalcv to get coverage of PoolGenDescribe, TraceDescribe, and MRGDescribe.

Copied from Perforce
 Change: 186010
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2014-05-11 21:13:55 +01:00
Gareth Rees
2b41ec58db Catch-up merge from master sources @185999 to branch/2014-04-17/describe.
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 Change: 186003
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2014-05-11 18:33:02 +01:00
Gareth Rees
add3e4bf93 Consistent order stream, depth.
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 Change: 186001
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2014-05-11 18:30:23 +01:00
Gareth Rees
c44f2d6a20 Correct indentation of describe output by passing depth parameter to describe functions and to writef.
Call Describe functions from test cases so that we get coverage.

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 Change: 186000
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2014-05-11 18:20:38 +01:00