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Author SHA1 Message Date
David Goldblatt
f77cec311e Decay: Take current time as an argument. 
This better facilitates testing.
 2020-04-10 13:12:47 -07:00
David Goldblatt
bf55e58e63 Rename test/unit/decay -> test/unit/arena_decay. 
This is really more of an end-to-end test at the arena level; it's not just of
the decay code in particular any more.
 2020-04-10 13:12:47 -07:00
David Goldblatt
d1d7e1076b Decay: move in some background_thread accesses. 2020-04-10 13:12:47 -07:00
David Goldblatt
cdb916ed3f Decay: Add comments for the public API. 2020-04-10 13:12:47 -07:00
David Goldblatt
8f2193dc8d Decay: Move in arena decay functions. 2020-04-10 13:12:47 -07:00
David Goldblatt
4d090d23f1 Decay: Introduce a stub .c file. 2020-04-10 13:12:47 -07:00
David Goldblatt
7b62885476 Introduce decay module and put decay objects in PA 2020-04-10 13:12:47 -07:00
David Goldblatt
497836dbc8 Arena stats: mark edata_avail as derived. 
The true number is in the edata_cache itself.
 2020-04-10 13:12:47 -07:00
David Goldblatt
3192d6b77d Extents: Have extent_dalloc_gap take ehooks. 
We're almost to the point where the extent code doesn't know about arenas at
all.  In that world, we shouldn't pull them out of the arena.
 2020-04-10 13:12:47 -07:00
David Goldblatt
22a0a7b93a Move arena_decay_extent to extent module. 2020-04-10 13:12:47 -07:00
David Goldblatt
70d12ffa05 PA: Move mapped into pa stats. 2020-04-10 13:12:47 -07:00
David Goldblatt
6ca918d0cf PA: Add a stats comment. 2020-04-10 13:12:47 -07:00
David Goldblatt
ce8c0d6c09 PA: Move in arena extent_sn counter. 
Just another step towards making PA self-contained.
 2020-04-10 13:12:47 -07:00
David Goldblatt
1ada4aef84 PA: Get rid of arena_ind_get calls. 
This is another step on the path towards breaking the extent reliance on the
arena module.
 2020-04-10 13:12:47 -07:00
David Goldblatt
1ad368c8b7 PA: Move in decay stats. 2020-04-10 13:12:47 -07:00
David Goldblatt
356aaa7dc6 Introduce lockedint module. 
This pulls out the various abstractions where some stats counter is sometimes an
atomic, sometimes a plain variable, sometimes always protected by a lock,
sometimes protected by reads but not writes, etc.  With this change, these cases
are treated consistently, and access patterns tagged.

In the process, we fix a few missed-update bugs (where one caller assumes
"protected-by-a-lock" semantics and another does not).
 2020-04-10 13:12:47 -07:00
David Goldblatt
acd0bf6a26 PA: move in ecache_grow. 2020-04-10 13:12:47 -07:00
David Goldblatt
32cb7c2f0b PA: Add a stats type. 2020-04-10 13:12:47 -07:00
David Goldblatt
688fb3eb89 PA: Move in the arena edata_cache. 2020-04-10 13:12:47 -07:00
David Goldblatt
8433ad84ea PA: move in shard initialization. 2020-04-10 13:12:47 -07:00
David Goldblatt
a24faed569 PA: Move in the ecache_t objects. 2020-04-10 13:12:47 -07:00
David Goldblatt
585f925055 Move cache index randomization out of extent. 
This is logically at a higher level of the stack; extent should just allocate
things at the page-level; it shouldn't care exactly why the callers wants a
given number of pages.
 2020-04-10 13:12:47 -07:00
David Goldblatt
12be9f5727 Add a stub PA module -- a page allocator. 2020-04-10 13:12:47 -07:00
Yinan Zhang
c4e9ea8cc6 Get rid of locks in prof recent test 2020-04-07 17:22:24 -07:00
Yinan Zhang
2deabac079 Get rid of custom iterator for last-N records 2020-04-07 17:22:24 -07:00
Yinan Zhang
a5ddfa7d91 Use ql for prof last-N list 2020-04-07 17:22:24 -07:00
David Goldblatt
8da6676a02 Don't do reentrant testing in junk tests. 2020-04-07 15:45:40 -07:00
Yinan Zhang
ce17af4221 Better structure ql module 2020-04-06 09:50:27 -07:00
Yinan Zhang
4b66297ea0 Add move constructor to ql module 2020-04-06 09:50:27 -07:00
Yinan Zhang
a62b7ed928 Add emptiness checking to ql module 2020-04-06 09:50:27 -07:00
Yinan Zhang
1dd24ca6d2 Add rotate functionality to ql module 2020-04-06 09:50:27 -07:00
Yinan Zhang
0dc95a882f Add concat and split functionality to ql module 2020-04-06 09:50:27 -07:00
Yinan Zhang
1ad06aa53b deduplicate insert and delete logic in qr module 2020-04-06 09:50:27 -07:00
Yinan Zhang
c9d56cddf2 Optimize meld in qr module 
The goal of `qr_meld()` is to change the following four fields
`(a->prev, a->prev->next, b->prev, b->prev->next)` from the values
`(a->prev, a, b->prev, b)` to `(b->prev, b, a->prev, a)`.

This commit changes

```
a->prev->next = b;
b->prev->next = a;
temp = a->prev;
a->prev = b->prev;
b->prev = temp;
```

to

```
temp = a->prev;
a->prev = b->prev;
b->prev = temp;
a->prev->next = a;
b->prev->next = b;
```

The benefit is that we can use `b->prev->next` for `temp`, and so
there's no need to pass in `a_type`.

The restriction is that `b` cannot be a `qr_next()` macro, so users
of `qr_meld()` must pay attention.  (Before this change, neither `a`
nor `b` could be a `qr_next()` macro.)
 2020-04-06 09:50:27 -07:00
David Goldblatt
0d6d9e8586 configure.ac: Put public symbols on one line. 2020-04-02 13:27:29 -07:00
Yinan Zhang
f9aad7a49b Add piping API to buffered writer 2020-04-01 09:41:20 -07:00
Yinan Zhang
09cd79495f Encapsulate buffer allocation failure in buffered writer 2020-04-01 09:41:20 -07:00
Yinan Zhang
a166c20818 Make prof_tctx_t pointer a true prof atomic fence 2020-03-31 17:43:42 -07:00
David T. Goldblatt
d936b46d3a Add malloc_conf_2_conf_harder 
This comes in handy when you're just a user of a canary system who wants to
change settings set by the configuration system itself.
 2020-03-31 06:25:08 -07:00
David Goldblatt
3b4a03b92b Mac: don't declare system functions as nothrow. 
This contradicts the system headers, which can lead to breakages.
 2020-03-26 14:11:24 -07:00
Yinan Zhang
2256ef8961 Add option to fetch system thread name on each prof sample 2020-03-24 21:39:57 -07:00
Yinan Zhang
ccdc70a5ce Fix: assertion could abort on past failures 2020-03-18 20:48:26 -07:00
Yinan Zhang
b30a5c2f90 Reorganize cpp APIs and suppress unused function warnings 2020-03-13 12:16:09 -07:00
David Goldblatt
2e5899c129 Stats: Fix tcache_bytes reporting. 
Previously, large allocations in tcaches would have their sizes reduced during
stats estimation.  Added a test, which fails before this change but passes now.

This fixes a bug introduced in 5934846612, which
was itself fixing a bug introduced in 9c0549007d.
 2020-03-13 07:53:34 -07:00
Yinan Zhang
a5780598b3 Remove thread_event_rollback() 2020-03-12 13:55:00 -07:00
Yinan Zhang
ba783b3a0f Remove prof -> thread_event dependency 2020-03-12 13:55:00 -07:00
Yinan Zhang
441d88d1c7 Rewrite profiling thread event 2020-03-12 13:55:00 -07:00
David Goldblatt
0dcd576600 Edata cache: atomic fetch-add -> load-store. 
The modifications to count are protected by a mutex; there's no need to use the
more costly version.
 2020-03-12 11:58:09 -07:00
David Goldblatt
99b1291d17 Edata cache: add edata_cache_small_t. 
This can be used to amortize the synchronization costs of edata_cache accesses.
 2020-03-12 11:58:09 -07:00
David Goldblatt
734109d9c2 Edata cache: add a unit test. 2020-03-12 11:58:09 -07:00