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Author SHA1 Message Date
David Goldblatt
1d449bd9a6 Emap: Internal rtree context setting. 
The only time sharing an rtree context saves across extent operations isn't a
no-op is when tsd is unavailable.  But this happens only in situations like
thread death or initialization, and we don't care about shaving off every
possible cycle in such scenarios.
 2020-02-17 10:50:51 -08:00
David Goldblatt
08eb1e6c31 Emap: Comments and cleanup 
Document some of the public interface, and hide the functions that are no longer
used outside of the emap module.
 2020-02-17 10:50:51 -08:00
David Goldblatt
231d1477e5 Rename emap_split_prepare_t -> emap_prepare_t. 
Both the split and merge functions use it.
 2020-02-17 10:50:51 -08:00
David Goldblatt
0586a56f39 Emap: Move in merge functionality. 2020-02-17 10:50:51 -08:00
David Goldblatt
040eac77cc Tell edatas their creation arena immediately. 
This avoids having to pass it in anywhere else.
 2020-02-17 10:50:51 -08:00
David Goldblatt
7c7b702064 Emap: Move over metadata splitting logic. 2020-02-17 10:50:51 -08:00
David Goldblatt
44f5f53605 Emap: Move over deregistration functions. 2020-02-17 10:50:51 -08:00
David Goldblatt
6513d9d923 Emap: Move over deregistration boundary functions. 2020-02-17 10:50:51 -08:00
David Goldblatt
9b5ca0b09d Emap: Move in slab interior registration. 2020-02-17 10:50:51 -08:00
David Goldblatt
d05b61db4a Emap: Move extent boundary registration in. 2020-02-17 10:50:51 -08:00
David Goldblatt
ca21ce4071 Emap: Move in write_acquired from extent. 2020-02-17 10:50:51 -08:00
David Goldblatt
01f255161c Add emap, for tracking extent locking. 2020-02-17 10:50:51 -08:00
Qi Wang
0f686e82a3 Avoid variable length array with length 0. 2020-02-16 14:14:07 -08:00
Yinan Zhang
68e8ddcaff Add mallctl for dumping last-N profiling records 2020-02-14 12:46:38 -08:00
Yinan Zhang
bc05ecebf6 Add const qualifier in assert_cmp() 2020-02-14 12:46:38 -08:00
Qi Wang
ba0e35411c Rework the bin locking around tcache refill / flush. 
Previously, tcache fill/flush (as well as small alloc/dalloc on the arena) may
potentially drop the bin lock for slab_alloc and slab_dalloc.  This commit
refactors the logic so that the slab calls happen in the same function / level
as the bin lock / unlock.  The main purpose is to be able to use flat combining
without having to keep track of stack state.

In the meantime, this change reduces the locking, especially for slab_dalloc
calls, where nothing happens after the call.
 2020-02-13 23:31:54 -08:00
Kamil Rytarowski
7fd22f7b2e Fix Undefined Behavior in hash.h 
hash.h:200:27, left shift of 250 by 24 places cannot be represented in type 'int'
 2020-02-13 12:25:26 -08:00
Qi Wang
ca1f082251 Disallow merge across mmap regions to preserve SN / first-fit. 
Check the is_head state before merging two extents.  Disallow the merge if it's
crossing two separate mmap regions.  This enforces first-fit (by not losing the
SN) at a very small cost.
 2020-02-13 12:18:44 -08:00
Yinan Zhang
7014f81e17 Add ASSURED_WRITE in mallctl 2020-02-05 15:29:14 -08:00
Yinan Zhang
2476889195 Add inspect.c to MSVC filters 2020-02-05 10:01:49 -08:00
Yinan Zhang
9cac3fa8f5 Encapsulate buffer allocation in buffered writer 2020-02-04 13:21:58 -08:00
Yinan Zhang
bdc08b5158 Better naming buffered writer 2020-02-04 13:21:58 -08:00
Qi Wang
c6bfe55857 Update the tsd description. 2020-02-04 13:07:05 -08:00
Qi Wang
e896522616 Abbreviate thread-event to te. 2020-02-04 13:07:05 -08:00
Qi Wang
5e500523a0 Remove thread_event_boot(). 2020-02-04 00:18:15 -08:00
Qi Wang
97dd79db6c Implement deallocation events. 
Make the event module to accept two event types, and pass around the event
context.  Use bytes-based events to trigger tcache GC on deallocation, and get
rid of the tcache ticker.
 2020-02-04 00:18:15 -08:00
zoulasc
536ea6858e NetBSD specific changes: 
- NetBSD overcommits
- When mapping pages, use the maximum of the alignment requested and the
  compiled-in PAGE constant which might be greater than the current kernel
  pagesize, since we compile binaries with the maximum page size supported
  by the architecture (so that they work with all kernels).
 2020-02-03 15:49:36 -08:00
Qi Wang
974222c626 Add safety check on sdallocx slow / sampled path. 2020-01-31 00:04:22 -08:00
Qi Wang
88d9eca848 Enforce page alignment for sampled allocations. 
This allows sampled allocations to be checked through alignment, therefore
enable sized deallocation regardless of cache_oblivious.
 2020-01-31 00:04:22 -08:00
Qi Wang
0f552ed673 Don't purge huge extents when decay is off. 2020-01-30 14:40:38 -08:00
Qi Wang
38a48e5741 Set reentrancy to 1 for tsd_state_purgatory. 
Reentrancy is already set for other non-nominal tsd states (reincarnated and
minimal_initialized).  Add purgatory to be safe and consistent.
 2020-01-30 13:55:20 -08:00
Qi Wang
88b0e03a4e Implement opt.stats_interval and the _opts options. 
Add options stats_interval and stats_interval_opts to allow interval based stats
printing.  This provides an easy way to collect stats without code changes,
because opt.stats_print may not work (some binaries never exit).
 2020-01-29 09:57:55 -08:00
Qi Wang
d71a145ec1 Chagne prof_accum_t to counter_accum_t for general purpose. 2020-01-29 09:57:55 -08:00
Qi Wang
ea351a7b52 Fix syntax errors in doc for thread.idle. 2020-01-23 16:41:53 -08:00
David Goldblatt
d92f0175c7 Introduce NEITHER_READ_NOR_WRITE in ctl. 
This is slightly clearer in meaning.  A function that is both READONLY() and
WRITEONLY() is in fact neither one.
 2020-01-22 18:29:13 -08:00
David Goldblatt
6a622867ca Add "thread.idle" mallctl. 
This can encapsulate various internal cleaning logic, and can be used to free up
resources before a long sleep.
 2020-01-22 18:29:13 -08:00
Yinan Zhang
f81341a48b Fallback to unbuffered printing if OOM 2020-01-21 17:09:44 -08:00
Yinan Zhang
cd6e908241 Add stress test for last-N profiling mode 2020-01-21 16:51:26 -08:00
Yinan Zhang
84b28c6a13 Properly handle tdata deletion race 2020-01-21 16:51:26 -08:00
Yinan Zhang
d331208560 Get rid of redundant logic in prof 2020-01-21 16:51:26 -08:00
Yinan Zhang
a72ea0db60 Restructure and correct sleep utility for testing 2020-01-21 16:51:26 -08:00
Yinan Zhang
7b67ed0b5a Get rid of lock overlap in prof_recent_alloc_reset 2020-01-21 16:51:26 -08:00
David Goldblatt
bd3be8e0b1 Remove commit parameter to ecache functions. 
No caller ever wants uncommitted memory.
 2020-01-17 10:54:56 -08:00
Yinan Zhang
b8df719d5c No tdata creation for backtracing on dying thread 2020-01-16 21:54:14 -08:00
Qi Wang
dab81bd315 Rework and fix the assertions on malloc fastpath. 
The first half of the malloc fastpath may execute before malloc_init.  Make the
assertions work in that case.
 2020-01-14 15:00:41 -08:00
Yinan Zhang
ad3f3fc561 Fetch time after tctx and only for samples 2020-01-14 14:36:20 -08:00
Qi Wang
a5d3dd4059 Fix an assertion on extent head state with dss. 2020-01-10 13:29:14 -08:00
Yinan Zhang
2b604a3016 Record request size in prof recent entries 2020-01-10 12:01:01 -08:00
Yinan Zhang
40a391408c Define constructor for buffered writer argument 2020-01-10 11:59:02 -08:00
Yinan Zhang
6d8e616902 Make buffered writer an independent module 2020-01-10 11:59:02 -08:00