bf8779ab13
ck_swlock: Decrement n_readers in TATAS style loop.
11 years ago
3412f135df
ck_swlock: Fix makefile
11 years ago
8646990847
Merge remote-tracking branch 'jsridhar-dev/ck_swlock' into ck_swlock
...
Conflicts:
include/ck_swlock.h
regressions/ck_swlock/validate/validate.c
11 years ago
1f03809acb
ck_swlock: We shouldn't decrement n_readers when
...
ck_swlock_read_latchlocks observers a writer if the unlatch
operation sets n_readers to 0.
The unlatch operation now just unsets the latch bit, we can safely
decrement n_readers in ck_swlock_read_latchlocks().
+ Fixes to validation tests & ELIDE coverage.
11 years ago
4ea2a0e739
gitignore: add regressions/ck_spinlock/validate/ck_hclh
...
and sort regressions/ noise alphabetically.
11 years ago
f06a5c4a71
ck_bitmap: more bulk operations, less space, more tests
...
* new bulk rmw: intersection, intersection_negate (with complement),
* new bulk reads: empty, full, count, count_intersect
* ck_bitmap_iterator fixes: avoid out of bounds read on empty bitmaps,
and ck_bitmap_next is marginally faster on sparse bitmaps .
* less space: the bitmap itself is an array of unsigned int, which
eliminates alignment padding between the n_bit field and the bitmap.
* more unit tests.
11 years ago
96fdf1efbd
ck_cc: new bitwise ops
...
GCC and compatible compilers support ffs/ctz/clz/popcount. Expose that
in ck_cc and default to slow but portable software emulation.
11 years ago
240d30c8c4
regressions/ck_swlock: Fix-up style and Copyright.
11 years ago
1997acde22
regressions: Remove optimization flags from ck_swlock.
11 years ago
bfc9837d4f
ck_swlock: Whitespace change.
11 years ago
63b79c7b1e
ck_swlock: Fix Copyright ordering.
11 years ago
6fe2bba224
ck_swlock: Fix-up TATAS loop.
11 years ago
a1daff18ea
ck_swlock: Switch to TATAS style loop for latch operations.
11 years ago
82f33b3fe9
ck_swlock: First round fixes for ck_swlock.
...
- Add necessary memory barriers.
- Style conformance.
11 years ago
9732e2bdb3
ck_swlock: A single writer rwlock.
...
This lock is copy-safe when the latch operations are used.
Simplified write side operations lead to lower latencies than ck_rwlock
for single writer workloads.
11 years ago
c3097a4a7b
regressions: Remove latchlock coverage.
11 years ago
176dfce5c3
ck_rwlock: Fix conflict.
...
ck_swlock will be a copy-safe single-writer multi-reader lock that
will meet our requirements.
11 years ago
e2913ab9c0
Revert "ck_rwlock: Migrate to 32-bit primitives and add a write_latch operation."
...
This reverts commit 210b724061
11 years ago
6ccfb84d81
Revert "ck_rwlock: Use sub for unlatch operation."
...
This reverts commit b7c3c8a43d
11 years ago
ed476a617c
Revert "ck_rwlock: Clear reader bits on unlatch operation."
...
This reverts commit 7f945460bc
11 years ago
cdfac8213f
Revert "ck_rwlock: Re-observe latch bits if necessary."
...
This reverts commit fa28622386
11 years ago
88d323f40d
Revert "ck_rwlock: Acquire semantics for ordering on latch bits."
...
This reverts commit 2b567320de
11 years ago
9ebd19a124
Revert "ck_rwlock: Add ck_rwlock_read_latchlock operation."
...
This reverts commit bc7ebc62eb
11 years ago
cf097db790
Revert "ck_rwlock: Ignore latch bits on write lock operation."
...
This reverts commit 8173b937bf
11 years ago
e2bd885953
Revert "ck_rwlock: Re-organization of write-side operations and latch support for write_trylock."
...
This reverts commit ab22fda4e7
11 years ago
9aad0125af
Revert "ck_rwlock: Additional re-organization of write-side functions."
...
This reverts commit d9b86d2d89
11 years ago
d3a7adaf8c
Revert "ck_rwlock: Additional reorganization."
...
This reverts commit 56de32fffd
11 years ago
2a701163eb
ck_rwlock: Ditch ck_rwlock latch for ck_swlock.
11 years ago
bf3a3fdeb2
Revert "regressions: Benchmark coverage for latchlock operations."
...
This reverts commit 24d65432e0
11 years ago
24d65432e0
regressions: Benchmark coverage for latchlock operations.
11 years ago
56de32fffd
ck_rwlock: Additional reorganization.
11 years ago
d9b86d2d89
ck_rwlock: Additional re-organization of write-side functions.
11 years ago
ab22fda4e7
ck_rwlock: Re-organization of write-side operations and latch support for write_trylock.
11 years ago
8173b937bf
ck_rwlock: Ignore latch bits on write lock operation.
11 years ago
bc7ebc62eb
ck_rwlock: Add ck_rwlock_read_latchlock operation.
...
This avoids degradation on read_lock path for use-cases not
requiring latch semantics.
11 years ago
2b567320de
ck_rwlock: Acquire semantics for ordering on latch bits.
11 years ago
fa28622386
ck_rwlock: Re-observe latch bits if necessary.
11 years ago
7f945460bc
ck_rwlock: Clear reader bits on unlatch operation.
11 years ago
b7c3c8a43d
ck_rwlock: Use sub for unlatch operation.
11 years ago
3cae483bce
Merge branch 'master' of git.concurrencykit.org:ck
11 years ago
210b724061
ck_rwlock: Migrate to 32-bit primitives and add a write_latch operation.
...
write_latch allows writers to prevent incoming read acquisitions from
succeeding while permitting write_lock operations to complete. This is
useful if multiple writers are cooperating in linearizing a non-blocking
data structure and allows for lock state to be copied by the write lock
holder safely.
In collaboration with Paul Khuong and Jaidev Sridhar.
11 years ago
0878bf489a
regressions/ck_pr: Coverage for immediates.
11 years ago
f8b41af77c
x86_64: Require 32-bit immediate values for expansion.
...
Pointed out by Paul Khuong, who ran into issues with immediates
while working on improvements to ck_bitmap.
11 years ago
64d94f45d3
doc: Fix grammar in ck_array_commit manual page.
11 years ago
cefd6bc9ec
ck_ring: Remove stale comment from pre-memcpy implementation.
11 years ago
396ceb16bb
ck_ring: Fix typo in type-specialized ck_ring_dequeue_tryspmc.
...
Thanks to Paul Khuong <pkhuong@appnexus> for patch.
11 years ago
7de5da15d7
regressions/ck_tflock: Remove rwlock reference.
11 years ago
6e0f79c70e
ck_tflock: Initial check-in of reference implementation.
11 years ago
671d067ea0
ck_bytelock: Fix casting error affecting 32-bit architectures.
11 years ago
81f267ce62
Merge branch 'master' of git.concurrencykit.org:ck
11 years ago
Jaidev Sridhar
Paul Khuong
Samy Al Bahra
Samy Al Bahra