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Author SHA1 Message Date
David Goldblatt
372042a082 Remove merge dependence on the arena. 2019-12-20 10:18:40 -08:00
David Goldblatt
439219be7e Remove extent_can_coalesce arena dependency. 2019-12-20 10:18:40 -08:00
David Goldblatt
9cad5639ff Ehooks: remove arena_ind parameter. 
This lives within the ehooks_t now, so that callers don't need to know it.
 2019-12-20 10:18:40 -08:00
David Goldblatt
57fe99d4be Move relevant index into the ehooks_t itself. 
It's always passed into the ehooks; keeping it colocated lets us avoid passing
the arena everywhere.
 2019-12-20 10:18:40 -08:00
David Goldblatt
c792f3e4ab edata_cache: Remember the associated base_t. 
This will save us some trouble down the line when we stop passing arena pointers
everywhere; we won't have to pass around a base_t pointer either.
 2019-12-20 10:18:40 -08:00
David Goldblatt
ae23e5f426 Unify extent_alloc_wrapper with the other wrappers. 
Previously, it was really more like extents_alloc (it looks in an ecache for an
extent to reuse as its primary allocation pathway).  Make that pathway more
explciitly like extents_alloc, and rename extent_alloc_wrapper_hard accordingly.
 2019-12-20 10:18:40 -08:00
David Goldblatt
d8b0b66c6c Put extent_state_t into ecache as well as eset. 2019-12-20 10:18:40 -08:00
David Goldblatt
98eb40e563 Move delay_coalesce from the eset to the ecache. 2019-12-20 10:18:40 -08:00
David Goldblatt
bb70df8e5b Extent refactor: Introduce ecache module. 
This will eventually completely wrap the eset, and handle concurrency,
allocation, and deallocation.  For now, we only pull out the mutex from the
eset.
 2019-12-20 10:18:40 -08:00
David Goldblatt
0704516245 Ehooks: Add head tracking. 2019-12-20 10:18:40 -08:00
David Goldblatt
09475bf8ac extent_may_dalloc -> ehooks_dalloc_will_fail 2019-12-20 10:18:40 -08:00
David Goldblatt
7859184179 Pull out edata_t caching into its own module. 2019-12-20 10:18:40 -08:00
David Goldblatt
a7862df616 Rename extent_t to edata_t. 
This frees us up from the unfortunate extent/extent2 naming collision.
 2019-12-20 10:18:40 -08:00
David Goldblatt
865debda22 Rename extent.h -> edata.h. 
This name is slightly pithier; a full-on rename will come shortly.
 2019-12-20 10:18:40 -08:00
David Goldblatt
a738a66b5c Ehooks: Add some debug zero and addr checks. 
These help make sure that the ehooks return properly zeroed memory when required
to.
 2019-12-20 10:18:40 -08:00
David Goldblatt
4b2e5ee8b9 Ehooks: Add a "zero" ehook. 
This is the first API expansion.  It lets the hooks pick where and how to purge
within themselves.
 2019-12-20 10:18:40 -08:00
David Goldblatt
d0f187ad3b Arena: Loosen arena_may_have_muzzy restrictions. 
If there are custom extent hooks, pages_can_purge_lazy is not necessarily the
right guard.  We could check ehooks_are_default too, but the case where
purge_lazy is unsupported is rare and getting rarer.  Just checking the decay
interval captures most of the benefit.
 2019-12-20 10:18:40 -08:00
David Goldblatt
ebbb973271 Base: Remove some unnecessary reentrancy guards. 
The ehooks module will now call these if necessary.
 2019-12-20 10:18:40 -08:00
David Goldblatt
403f2d1664 Extents: Split out introspection functionality. 
This isn't really part of the core extent allocation facilities.  Especially as
this module grows, having it in its own place may come in handy.
 2019-12-20 10:18:40 -08:00
David Goldblatt
92a511d385 Make extent module hermetic. 
In the form of extent2.h.  The naming leaves something to be desired, but I'll
leave that for a later diff.
 2019-12-20 10:18:40 -08:00
David Goldblatt
e08c581cf1 Extent: Get rid of extent-specific pre/post reentrancy calls. 
These are taken care of by the ehook module; the extra increments and
decrements are safe but unnecessary.
 2019-12-20 10:18:40 -08:00
David Goldblatt
39fdc690a0 Ehooks comments and cleanup. 2019-12-20 10:18:40 -08:00
David Goldblatt
c8dae890c8 Extent -> Ehooks: Move over default hooks. 2019-12-20 10:18:40 -08:00
David Goldblatt
2fe5108263 Extent -> Ehooks: Move merge hook. 2019-12-20 10:18:40 -08:00
David Goldblatt
1fff4d2ee3 Extent -> Ehooks: Move split hook. 2019-12-20 10:18:40 -08:00
David Goldblatt
a5b42a1a10 Extent -> Ehooks: Move purge_forced hook. 2019-12-20 10:18:40 -08:00
David Goldblatt
368baa42ef Extent -> Ehooks: Move purge_lazy hook. 2019-12-20 10:18:40 -08:00
David Goldblatt
f83fdf5336 Extent: Clean up a comma 2019-12-20 10:18:40 -08:00
David Goldblatt
d78fe241ac Extent -> Ehooks: Move commit and decommit hooks. 2019-12-20 10:18:40 -08:00
David Goldblatt
5459ec9dae Extent -> Ehooks: Move destroy hook. 2019-12-20 10:18:40 -08:00
David Goldblatt
bac8e2e5a6 Extent -> Ehooks: Move dalloc hook. 2019-12-20 10:18:40 -08:00
David Goldblatt
dc8b4e6e13 Extent -> Ehooks: Move alloc hook. 2019-12-20 10:18:40 -08:00
David Goldblatt
703fbc0ff5 Introduce unsafe reentrancy guards. 
We have to work to circumvent the safety checks in pre_reentrancy when going
down extent hook pathways.  Instead, let's explicitly have checked and unchecked
guards.
 2019-12-20 10:18:40 -08:00
David Goldblatt
ae0d8e8591 Move extent ehook calls into ehooks 2019-12-20 10:18:40 -08:00
David Goldblatt
ba8b9ecbcb Add ehooks module 2019-12-20 10:18:40 -08:00
David Goldblatt
837119a948 base_structs.h: Remove some mid-line tabs. 2019-12-20 10:18:40 -08:00
David Goldblatt
9f6eb09585 Extents: Eagerly initialize extent hooks. 
When deferred initialization was added, initializing required copying
sizeof(extent_hooks_t) bytes after a pointer chase. Today, it's just a single
pointer loaded from the base_t. In subsequent diffs, we'll get rid of even that.
 2019-12-20 10:18:40 -08:00
David Goldblatt
4278f84603 Move extent hook getters/setters to arena.c 
This is where they're logically scoped; they access arena data.
 2019-12-20 10:18:40 -08:00
Wenbo Zhang
9226e1f0d8 fix opt.thp:never still use THP with base_new 2019-12-19 13:27:00 -08:00
Qi Wang
d5031ea824 Allow dallocx and sdallocx after tsd destruction. 
After a thread turns into purgatory / reincarnated state, still allow dallocx
and sdallocx to function normally.
 2019-12-19 11:17:03 -08:00
Yinan Zhang
4afd709d1f Restructure setters for profiling info 
Explicitly define three setters:

- `prof_tctx_reset()`: set `prof_tctx` to `1U`, if we don't know in
advance whether the allocation is large or not;
- `prof_tctx_reset_sampled()`: set `prof_tctx` to `1U`, if we already
know in advance that the allocation is large;
- `prof_info_set()`: set a real `prof_tctx`, and also set other
profiling info e.g. the allocation time.

Code structure wise, the prof level is kept as a thin wrapper, the
large level only provides low level setter APIs, and the arena level
carries out the main logic.
 2019-12-17 10:01:28 -08:00
Yinan Zhang
1d01e4c770 Initialization utilities for nstime 2019-12-16 16:08:56 -08:00
Qi Wang
dd649c9485 Optimize away the tsd_fast() check on fastpath. 
Fold the tsd_state check onto the event threshold check.  The fast threshold is
set to 0 when tsd switch to non-nominal.

The fast_threshold can be reset by remote threads, to refect the non nominal tsd
state change.
 2019-12-11 23:44:20 -08:00
Qi Wang
1decf958d1 Fix incorrect usage of cassert. 2019-12-11 14:02:59 -08:00
Yinan Zhang
45836d7fd3 Pass nstime_t pointer for profiling 2019-12-11 11:38:16 -08:00
Yinan Zhang
7d2bac5a38 Refactor destroy code path for prof_tctx 2019-12-10 16:31:05 -08:00
Yinan Zhang
055478cca8 Threshold is no longer updated before prof_realloc() 2019-12-10 16:31:05 -08:00
Yinan Zhang
7e3671911f Get rid of old indentation style for prof 2019-12-06 09:47:51 -08:00
Yinan Zhang
dfdd46f6c1 Refactor prof_tctx_t creation 2019-12-06 09:47:51 -08:00
Yinan Zhang
aa1d71fb7a Rename prof_tctx to alloc_tctx in prof_info_t 2019-12-06 09:47:51 -08:00