aa0c303554
ck_ht: Add ck_ht_gc functionality, similar to ck_hs_gc.
...
This allows for incremental reprobe to shorten over-all probe sequences
in delete heavy workloads.
11 years ago
554f11229e
ck_ht: Drop usage of ck_ht_t.
11 years ago
4c878ff1de
regressions: Implement aff_iterate() for FreeBSD.
11 years ago
b553f42fae
Reduce the memory size used for testing ck_fifo_mpmc, to make it easier for
...
low-memory machines (such as your typical arm hardware).
Approved by: mux (mentor)
11 years ago
7b49b3babf
doc: Add ck_hs_rebuild references.
11 years ago
2fe939c99d
doc: Add ck_hs_rebuild manual page.
11 years ago
30c05c49bc
doc: Add references to ck_hs_put_unique.
11 years ago
8d6de575cc
ck_ht: Style changes.
11 years ago
4954816d61
ck_ht: Predict empty slot to be likely on grow.
11 years ago
d204976c7a
ck_ht: Backport probe sequence from ck_hs.
11 years ago
ab1bd7688b
ck_internal: Use bsf for bsf_64 if available as a built-in.
11 years ago
7865d65fd3
doc: Add ck_hs_put_unique manual page.
11 years ago
b778a32b0e
Merge branch 'master' of git.concurrencykit.org:ck
11 years ago
f759f56dee
ck_hs: Style change.
11 years ago
566d0c68be
regressions/ck_hs: Move sliding window.
11 years ago
6d0b9fc4b7
ck_hs: Explicitly disallow tables of size smaller than L1 probe length.
11 years ago
abd504823d
ck_hs: Minor change for sake of readers.
11 years ago
3c1c91bd25
regressions: Update ck_hs_gc coverage.
11 years ago
0d6a0508cc
ck_hs: Allow for amortization and partial rebuild in ck_hs_gc.
11 years ago
69a3047012
ck_hs: Enable ck_hs_gc for resequencing in absence of DELETE workload.
11 years ago
956904c2ef
ck_hs: Enable necessary probe sequence optimization in ck_hs_gc.
11 years ago
895208d56f
ck_hs: Re-detect global maximum in GC and fix typo in remove.
11 years ago
cc6a7bf7bd
ck_hs: Remove useless mask in ck_hs_gc.
11 years ago
f085d75ff6
regressions/ck_hs: Performance coverage.
11 years ago
5f6cbabc4b
regressions/ck_hs: Serial coverage for rebuild.
11 years ago
f7eff4d61b
ck_hs: Add ck_hs_gc, mechanism for tombstone clean-up.
...
This is treated as an explicit garbage collection step
which will block writers.
11 years ago
5d4f9ae23d
ck_hs: Add ck_hs_rebuild operation.
...
This operation is short-hand notation for rebuilding
a hash table. This rebuild can occur in the presence
of concurrent readers and will require twice the amount
of memory of the existing hash table until completion.
11 years ago
25873e2641
Merge branch 'master' of git.concurrencykit.org:ck
11 years ago
c2f5ca52f6
regressions/ck_hs: Serial benchmark coverage for DELETE mode.
11 years ago
e87a4b78c9
ck_hs: Bound delete to local maxim.
11 years ago
aadae2bf13
regressions/ck_hs: Coverage for delete mode.
11 years ago
2ad920cd85
ck_hs: Add improved support for delete-heavy workloads.
...
This borrows from a technique described by Purcell and Harris
in "Non-blocking hashtables with open addressing" technical report.
Essentially, every slot will have an associated local probe maxim,
including tombstones. Highly aggressive workloads may still require
occassional garbage collection.
11 years ago
30d956d682
ck_hs: Re-order includes in header file.
11 years ago
84943b5787
ck_ht: Remove remnants of MPMC implementation from write-side probe.
11 years ago
fa9f3540fe
ck_hs: Various fixes for pointer comparison.
...
This abstracts away pointer packing tricks to a macro,
fixes comparison of pointers to occur in absence of
embedded values and improves robustness of pointer marshaling
for write-side operations for pointers that may already have
had pointer packing tricks played on them.
11 years ago
7355d0ea49
ck_internal: Fix bsf behavior.
11 years ago
f74c0eca62
ck_hs: Saturate to quadratic probe from double hashing.
...
This should primarily affect specific delete-heavy workloads.
11 years ago
f805ee746e
regressions: Coverage for ck_hs_put_unique.
11 years ago
a3532d52ce
ck_hs: Add ck_hs_put_unique function for fast-path unique inserts.
...
This function allows for faster insertions into tombstone-heavy
probe sequences by short-circuiting on tombstones rather than
continuing to probe. The user must already guarantee that the
entry being inserted is unique. If a non-unique key is inserted
with this operation, undefined behavior will result.
11 years ago
2dacc08443
ck_hs: Bump back to default linear probe length.
11 years ago
6e7ac5bee6
ck_hs: Increase linear probe factor to twice what it was.
...
This assumes adjacent sector prefetch and appears to have minimal
clustering effect. In addition to this, developers are free to define
their own linear probe length by defining CK_HS_PROBE_L1_SHIFT.
11 years ago
2769ce1a09
regressions/ck_hs: Add ck_hs tombstone stride workload to serial benchmark.
...
This measures clustering effect of tombstones on average probe sequence
length.
11 years ago
9f6f2216f3
doc: ck_hs_remove: Rectify an argument name.
11 years ago
f9d6c8cb85
doc: ck_epoch_call: Insert empty string between type definitions.
11 years ago
d6b53944ff
doc: ck_elide: Fix typos.
11 years ago
6176be8610
doc: ck_sequence: Fix header & function names.
11 years ago
fa2ded755a
doc: CK_COHORT_PROTOTYPE: Remove descriptions for unexisting parameters.
11 years ago
5f00801818
doc: ck_cohort: Fix example & function signatures.
11 years ago
59b1c23ca7
doc: Fix ck_hs_next reference.
...
Patch submitted by Devon H. O'Dell.
11 years ago
0610a0d0a8
ck_bag: Drop support for this data structure.
...
Could not find suitable use-case and generally doesn't
appear interesting to academics in the existing
form. Maybe it will make a come-back in the future with
fewer memory and latency compromises.
11 years ago
Samy Al Bahra
Samy Al Bahra
Olivier Houchard
Artemiy Volkov