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Author SHA1 Message Date
Richard Brooksby
ec53a423e3 Removing unused segpref from ams. 
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 Change: 184278
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 2014-01-30 17:53:17 +00:00
Richard Brooksby
15667c6135 Incorporating early commit limit checking into arena allocation policy. 
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 Change: 184240
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 2014-01-30 15:44:46 +00:00
Richard Brooksby
bdc4557496 Abstracting the allocation policy from arenaalloc in order to implement arena extension policy. 
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 Change: 184239
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 2014-01-30 15:44:46 +00:00
Richard Brooksby
efc7ad3d08 Tidying up the bootstrap so that every chunk gets added to the arena’s freecbs. 
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 Change: 184238
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 2014-01-30 15:44:46 +00:00
Richard Brooksby
7e310bb39f Generalising allocation of initial page for the arena’s freecbs so that it can be used when new chunks are added. 
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 Change: 184237
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 2014-01-30 15:44:46 +00:00
Richard Brooksby
d0a93e6caf Merging from branch //info.ravenbrook.com/project/mps/branch/2014-01-29/mps-chain-zones/... in order to eliminate generational considerations from the vm arena's placement policy. 
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 Change: 184233
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 2014-01-30 15:29:46 +00:00
Richard Brooksby
cd840766ca Adding mps_key_gen generation keyword to pools that take a chain (except amc), so that you can specify which generation to allocate in by default. this allows some flexibility when the client can predict the lifetimes of objects. 
The AWL and LO pools allocate into generation 1 of the arena default chain if neither MPS_KEY_CHAIN or MPS_KEY_GEN is specified, simulating the default setup before the chain-zones branch.

Copied from Perforce
 Change: 184231
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 2014-01-30 14:27:09 +00:00
Richard Brooksby
89acdbe044 The ams pool no longer requires a chain argument, but defaults to the arena default chain. 
Chains passed to the AMS pool are no longer required to contain a single generation, though the AMS will only use the first generation by default.

Copied from Perforce
 Change: 184229
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 2014-01-30 13:21:45 +00:00
Richard Brooksby
870c36adca Converting ams stress test to use keyword arguments. 
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 Change: 184228
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 2014-01-30 13:18:35 +00:00
Richard Brooksby
e0c8a8f1c0 The chain parameter to amc is now optional, defaulting to the arena’s default chain. 
AWL and LO accept a chain parameter, and also default to the arena’s default chain, rather than creating their own dummy chains.

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 Change: 184227
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 2014-01-30 13:00:46 +00:00
Richard Brooksby
4b865369fc Adding a default chain to the arena. not used anywhere yet. 
Copied from Perforce
 Change: 184224
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 2014-01-29 18:07:43 +00:00
Richard Brooksby
4a4ba7d343 The awl and lo pools were allocating their segments along with other pool’s generation 1, while accounting sizes into generation 0. in fact, this “generation 1” was really a kind of placement “clump” and the segments really lived in generation 0. however, this confused the new chainalloc because there are no longer any “clumps” maintained by the arena, causing awlut to fail. fixed awl and lo to be truthful about the generation they’re allocating in. placement concerns have been removed. 
Copied from Perforce
 Change: 184220
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 2014-01-29 17:15:31 +00:00
Richard Brooksby
9cdb3dd03b Bringing strategy design up to date with changes to zone allocation. 
Adding design documents to Xcode project for easier editing and source control.

Copied from Perforce
 Change: 184218
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 2014-01-29 15:26:04 +00:00
Richard Brooksby
02962f64ca Eliminating dodgy use of *segprefdefault() which could lead to implicit calls to memcpy. 
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 Change: 184217
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 2014-01-29 15:13:22 +00:00
Richard Brooksby
6b4100e1b1 Since the dynamic generation is shared between chains (for some reason) using its unified zone set, rather than keeping a special zone set per chain, which would’ve used up more zones. 
Using arena->topGen->mortality for the dynamic generation’s mortality, rather than a global variable.

Copied from Perforce
 Change: 184216
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 2014-01-29 13:49:42 +00:00
Richard Brooksby
d8e81ae3c3 Abolishing the redundant generation to zone map in the vm arena, and replacing it with chainalloc, which allocates segments within a generation. 
Generations from different chains will no longer share the same zone sets, and will not be collected together.  To get this behaviour, use the same chain, as documented.

Copied from Perforce
 Change: 184213
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 2014-01-29 12:54:05 +00:00
Richard Brooksby
13341c8a94 Allowing splayfindfirst to continue to search even if the treetest is not precise, allowing the arena allocator to search for free areas using a zone preference. 
Copied from Perforce
 Change: 184129
 ServerID: perforce.ravenbrook.com
 2014-01-26 14:01:37 +00:00
Richard Brooksby
9e197b6a79 Fix broken hysteresis in tract mapping. only purge spare pages if it’s possible to free a chunk, rather than speculatively every reclaim. see <https://info.ravenbrook.com/mail/2014/01/25/17-37-52/0/>. 
Copied from Perforce
 Change: 184125
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 2014-01-25 18:00:51 +00:00
Richard Brooksby
34f6123413 Catch-up merge from master to pick up improvements to segment iteration. 
Copied from Perforce
 Change: 184122
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 2014-01-25 17:01:57 +00:00
Richard Brooksby
f906187add iterating over segments using the pool and segment rings, rather than scanning the tract table, which may be full of irrelevant tracts, especially when non-gc pools are large. see <https://info.ravenbrook.com/mail/2014/01/25/12-16-09/0/>. 
Copied from Perforce
 Change: 184120
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 2014-01-25 15:33:10 +00:00
Richard Brooksby
76b66a7083 Adding a rash configuration to xcode builds. 
Copied from Perforce
 Change: 184117
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 2014-01-25 15:25:52 +00:00
Richard Brooksby
6e8d189002 Ignoring a.out (default output from cc). 
Copied from Perforce
 Change: 184116
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 2014-01-25 15:24:28 +00:00
Richard Brooksby
01d1948bf5 Catch-up merges from master to pick up xcode profiling tweak. 
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 Change: 184112
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 2014-01-24 16:09:28 +00:00
Richard Brooksby
728ea5e066 Inclusion order mysteriously prevents profiling under xcode. 
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 Change: 184111
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 2014-01-24 16:00:49 +00:00
Richard Brooksby
adc7935bb8 Catch-up merge from master to pick up "dj" benchmark. 
Copied from Perforce
 Change: 184110
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 2014-01-24 15:59:05 +00:00
Richard Brooksby
8086cc7cad Merging the "dj" benchmark from the benchmarking development branch. 
Copied from Perforce
 Change: 184106
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 2014-01-24 15:29:28 +00:00
Richard Brooksby
e37946b6f9 Catch-up merge from master. 
Copied from Perforce
 Change: 184103
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 2014-01-24 14:22:27 +00:00
Richard Brooksby
33a73ce392 Non-working preferential allocation within a block of the cbs. 
This doesn't work because the splay tree can't cope with homing in on a node (that appears big enough) then being told that it isn't suitable (because it doesn't have space in the right zone).  The splay tree summary condition must be precise, as stated in the design.  The splay tree isn't suited to this kind of search.

Copied from Perforce
 Change: 184073
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 2014-01-21 16:29:30 +00:00
Richard Brooksby
6d696d79be Hacky clean-up of the cbs' mfs tracts so that the arena can shut down successfully. 
Copied from Perforce
 Change: 184072
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 2014-01-21 16:10:16 +00:00
Richard Brooksby
23d1a5423c First draft of freeing into the arena's freecbs. 
Copied from Perforce
 Change: 184052
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 2014-01-18 18:24:07 +00:00
Richard Brooksby
3c52c769a1 Making the reservoir use arenaalloc and arenafree like a good citizen, rather than bypassing them, so that it correctly gets memory from the freecbs. 
Copied from Perforce
 Change: 184051
 ServerID: perforce.ravenbrook.com
 2014-01-18 17:45:56 +00:00
Richard Brooksby
cf8738fd9f First draft of allocating using the freecbs. arenaalloc finds a free address range in the cbs and asks the arena class to mark it allocated, rather than the arena class doing the search. plenty still missing. no freeing. 
Copied from Perforce
 Change: 184050
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 2014-01-18 17:16:10 +00:00
Richard Brooksby
7b54fc9926 Creating and tearing down the arena freecbs that will hold free address ranges. 
Copied from Perforce
 Change: 184049
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 2014-01-18 16:25:08 +00:00
Richard Brooksby
d80284de46 Part of changelist 184047. oops. 
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 Change: 184048
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 2014-01-18 15:46:18 +00:00
Richard Brooksby
36245a938f Poolmfs can take a zero extendby so that it never extends itself, and have memory added using mfsextend. this allows the mfs pool to be used to store blocks for the arena's cbs before the tract allocator exists. 
Copied from Perforce
 Change: 184047
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 2014-01-18 15:45:22 +00:00
Richard Brooksby
ad0d2c99df Adding a free address space cbs to the arena, initialising and finishing it, but not using it yet. 
Moved CBSStruct to mpmst.h so that it can be included inline in ArenaStruct without circularity problems.

Copied from Perforce
 Change: 184044
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 2014-01-17 16:15:13 +00:00
Richard Brooksby
454ad555c3 Inlining the mfs block pool's structure into its parent mfs, to avoid allocating in the control pool when initialising a cbs. this will allow the cbs to be used before the control pool exists. 
Copied from Perforce
 Change: 184043
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 2014-01-17 15:48:12 +00:00
Gareth Rees
f1c066dab4 Remove obsolete file osxc.h. 
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 Change: 183954
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 2014-01-12 21:57:54 +00:00
Gareth Rees
158e4ea974 Test case libcbt.c is obsolete: mpslibcb mechanism was removed in change 179279. 
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 Change: 183952
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 2014-01-12 21:29:53 +00:00
Gareth Rees
b8f0a9195c Clarify decision to preserve/reclaim in amcreclaimnailed, avoiding ternary operator inside the if condition. 
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 Change: 183948
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 2014-01-12 11:21:21 +00:00
Gareth Rees
75e5c45a53 Remove unused (and unusable) macros arenarootring() and arenatracering(). 
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 Change: 183947
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 2014-01-12 11:19:35 +00:00
Gareth Rees
7a2a16aa73 Ignore build products for new platform lii6ll. 
Ignore telemetry database mpiso*.sql.

Copied from Perforce
 Change: 183942
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 2014-01-11 21:37:19 +00:00
Gareth Rees
e184ad8938 Rename spi3.c to spw3i3mv.c as it is windows- and microsoft- specific. 
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 Change: 183939
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 2014-01-10 20:51:13 +00:00
Gareth Rees
902c10954b Merge branch/2013-05-17/emergency into the master sources. 
This change refactors MVTBufferFill and makes related improvements to improve the clarity of the code.

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 Change: 183935
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 2014-01-10 18:52:08 +00:00
Gareth Rees
ff2ff70345 Change result type of abqpush, abqpop and abqpeek to bool. 
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 Change: 183934
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 2014-01-10 18:44:46 +00:00
Gareth Rees
1049386b6f Make improvements (mostly to comments) based on reviews: 
https://info.ravenbrook.com/mail/2014/01/10/15-57-50/0/
https://info.ravenbrook.com/mail/2014/01/10/15-40-47/0/

Copied from Perforce
 Change: 183932
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 2014-01-10 18:18:06 +00:00
Gareth Rees
bcfad58d3c Merge custom cet mainline into the master sources. this includes fixes for job003519 (clock values in text telemetry logs on windows have top 32 bits zero), job003536 (cet office can't replicate 100k snowmen in reasonable time), job003651 (stack overflows are not reliably handled). 
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 Change: 183926
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 2014-01-10 14:16:08 +00:00
Gareth Rees
ba3aaeb575 Clarify comment above bufferisreset: by "all pointers into the region" it actually means "the base, init, alloc, and limit pointers". 
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 Change: 183637
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 2013-11-04 15:31:58 +00:00
Gareth Rees
e82e3c4a21 Improve documentation of thread- and exception-safety precautions. 
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 Change: 183635
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 2013-11-04 15:14:47 +00:00
Gareth Rees
b45fc17861 Put testsetsize back to its original value of 200, so that randomsizealigned does not invoke undefined behaviour by right-shifting by more than the word width. 
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 Change: 183617
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 2013-10-31 09:39:09 +00:00