14a24d8e3f
[vector] Make hb_vector_t hashable
2022-05-19 13:04:06 -06:00
124f9aeb9b
[set] Make hb_set_t hashable
2022-05-19 12:58:02 -06:00
3ab2c7935f
[subset-perf] Signficiantly speed up ClassDef*::subset.
...
Eliminates the usage of a glyph -> klass hash map and replaces it with a vector storing the mapping. This allows us to use the vector directly as the iterator driving the serialize. Approximately 1% speedup for Noto Nastaliq.
2022-05-19 12:37:28 -06:00
e3e685e5ee
[ot-tags] Fix `min_subtag_len` calculations
2022-05-18 18:30:01 -06:00
0b1c2ff96a
[subset-perf] Remove extra map lookup in ClassDef subset methods.
2022-05-18 18:25:36 -06:00
13ace77f1d
[subset-perf] Use glyph_map instead of set in ClassDefFormat.
2022-05-18 18:25:36 -06:00
adae2f2272
[subset-perf] Cache a glyph map for gsub.
...
This allows us in some cases to avoid using glyph_set_gsub as a filter.
2022-05-18 18:25:36 -06:00
202e6c4699
[subset] Remove unnecessary test
2022-05-18 17:12:43 -06:00
cedf739646
Add some commented-out code
2022-05-18 16:53:26 -06:00
6b62c10f02
[priority-queue] Remove old init/fini
2022-05-18 16:27:54 -06:00
bff8248a9d
[repacker] Pre-alloc vertices
2022-05-18 16:25:03 -06:00
39a424caf0
[priority-queue] Optimize heap access
2022-05-18 16:19:44 -06:00
9308659fd7
[priority-queue] Optimize swap()
2022-05-18 16:14:25 -06:00
c7317ef761
[repacker] Avoid destroying and recreating objects
2022-05-18 16:03:41 -06:00
864e09a0c4
[repacker] Reuse allocated vector
2022-05-18 15:59:29 -06:00
ca77f16470
[repacker] Remove unnecessary vector .fini() calls
2022-05-18 15:55:49 -06:00
4cfc2d668e
[subset] Use a std::move on set_t when feasible
2022-05-18 15:32:19 -06:00
1f578b5a32
[set] Add pre-allocation internal API
2022-05-18 15:25:00 -06:00
48dfbd54a3
[subset] minor cleanup.
2022-05-18 15:24:54 -06:00
482c6e5dc4
[subset-perf] Speed up Coverage::serialize by caching iterator.
2022-05-18 15:24:54 -06:00
14b18725f0
In Coverage::iter_t, assume iterators are from same Coverage object
...
No need to support otherwise.
2022-05-18 15:14:32 -06:00
27141735c3
[subset] Add Coverage::__end__ implementation
2022-05-18 15:12:49 -06:00
c476f58adb
[subset] Write CoverageFormat2::intersects_coverage() as bsearch()
2022-05-18 14:20:23 -06:00
63c6695108
[ot-layout] Cosmetic
...
The implementation of HBUINT16 operator == is slower than just
comparing to ints.
2022-05-18 13:53:52 -06:00
777debd748
[subset] Rewrite CoverageFormat2::intersects as dagger
2022-05-18 13:46:06 -06:00
cf5001fac7
[subset] Optimize CoverageFormat2::intersected_coverage_glyphs
2022-05-18 13:38:29 -06:00
6f37c20798
[subset] Minor rewrite in CoverageFormat2::serialize()
2022-05-18 13:25:42 -06:00
e91863b717
[subset-cff] Pre-size map in subr_remap_t::create()
2022-05-18 12:39:55 -06:00
ce60462173
[subset-plan] Pre-size maps in _create_old_gid_to_new_gid_map()
2022-05-18 12:34:27 -06:00
f82ee17a75
[map] Pre-size map in constructor if we can
2022-05-18 12:19:49 -06:00
b5aa8a27ea
[subset-cff] Cosmetic
2022-05-18 11:58:58 -06:00
0b201623f5
[subset-cff] Fix previous commit
...
Oops!
2022-05-18 11:58:22 -06:00
4792309265
[subset-cff] Access vector directly
2022-05-18 11:54:08 -06:00
7c86f2e763
[subset-cff] Pre-alloc out buffer
2022-05-18 11:45:27 -06:00
0761e7cdfd
[subset-cff] Avoid resetting buffer as encoder does
2022-05-18 11:38:25 -06:00
71aa10a394
[subset-cff] Manually grow vector to avoid memset overhead
2022-05-18 11:37:24 -06:00
f455cc53fd
[subset-cff] Reuse buffer allocation
2022-05-18 11:31:55 -06:00
3e4ab2ad9c
[perf/benchmark-ot] Add zh-hans
2022-05-18 11:16:46 -06:00
6e668a2ade
[perf/benchmark-ot] Rename test
2022-05-18 11:16:11 -06:00
e24797aeac
[ot-tags] Follow-up to previous commit
...
Part of https://github.com/harfbuzz/harfbuzz/issues/3591
2022-05-18 11:10:10 -06:00
f5d619be79
[ot-tags] Further gate the slow complex case, and add more tests
...
Part of https://github.com/harfbuzz/harfbuzz/issues/3591
Still 'zh-trad' is the slowest case.
--------------------------------------------------------------------------------------------------
Benchmark Time CPU Iterations
--------------------------------------------------------------------------------------------------
BM_hb_ot_tags_from_script_and_language/COMMON zh_trad 136 ns 136 ns 5107838
BM_hb_ot_tags_from_script_and_language/COMMON ab_abcd 115 ns 115 ns 6103104
BM_hb_ot_tags_from_script_and_language/COMMON ab_abc 25.4 ns 25.3 ns 27674482
BM_hb_ot_tags_from_script_and_language/COMMON abcdef_XY 20.2 ns 20.1 ns 34795719
BM_hb_ot_tags_from_script_and_language/COMMON abcd_XY 19.4 ns 19.3 ns 36390401
BM_hb_ot_tags_from_script_and_language/COMMON cxy_CN 33.5 ns 33.4 ns 20998939
BM_hb_ot_tags_from_script_and_language/COMMON exy_CN 25.1 ns 25.0 ns 27705832
BM_hb_ot_tags_from_script_and_language/COMMON zh_CN 34.2 ns 34.1 ns 20564356
BM_hb_ot_tags_from_script_and_language/COMMON en_US 15.5 ns 15.5 ns 45032204
BM_hb_ot_tags_from_script_and_language/LATIN en_US 15.9 ns 15.8 ns 44412379
BM_hb_ot_tags_from_script_and_language/COMMON none 4.72 ns 4.71 ns 149101665
BM_hb_ot_tags_from_script_and_language/LATIN none 4.72 ns 4.70 ns 149254498
2022-05-18 11:04:52 -06:00
9c64bda21d
[ot-tag] Whitespace
2022-05-17 17:31:18 -06:00
3df8017e9b
[ot-tag] Optimize subtag_matches() more
2022-05-17 17:29:39 -06:00
b231fc2dbc
[perf/benchmark-ot] Add a couple more test cases
2022-05-17 17:03:37 -06:00
3524b14fa0
[perf/benchmark-ot] Add a couple more test cases
2022-05-17 17:02:48 -06:00
7f6e8c5536
[ot-tags] Optimize subtag_matches() further
...
Part of https://github.com/harfbuzz/harfbuzz/issues/3591
Comparing before to after
Benchmark Time CPU Time Old Time New CPU Old CPU New
----------------------------------------------------------------------------------------------------------------------------------------------------
BM_hb_ot_tags_from_script_and_language/COMMON abcd_XY -0.3371 -0.3371 71 47 71 47
2022-05-17 16:58:35 -06:00
27c11405a2
[ot-tag] Optimize subtag_matches
...
Part of https://github.com/harfbuzz/harfbuzz/issues/3591
2022-05-17 16:51:51 -06:00
a07d818597
[ot-tag] Add a likely() to the cache hit case
2022-05-17 16:46:10 -06:00
0ff5d36cd4
[perf/benchmark-ot] Fix benchmark
...
Part of https://github.com/harfbuzz/harfbuzz/issues/3591
Ouch!
These are the current numbers:
------------------------------------------------------------------------------------------------
Benchmark Time CPU Iterations
------------------------------------------------------------------------------------------------
BM_hb_ot_tags_from_script_and_language/COMMON abcd_XY 78.0 ns 77.7 ns 8917912
BM_hb_ot_tags_from_script_and_language/COMMON zh_CN 44.9 ns 44.8 ns 15475318
BM_hb_ot_tags_from_script_and_language/COMMON en_US 17.6 ns 17.5 ns 39812340
BM_hb_ot_tags_from_script_and_language/LATIN en_US 18.2 ns 18.1 ns 38356204
BM_hb_ot_tags_from_script_and_language/COMMON none 4.76 ns 4.74 ns 148746131
BM_hb_ot_tags_from_script_and_language/LATIN none 4.73 ns 4.71 ns 148421349
2022-05-17 16:38:19 -06:00
dfca47f419
[ot-tag] Cache last bsearch result
...
Part of https://github.com/harfbuzz/harfbuzz/issues/3591
Humm. Looks like not all of the fat is bsearch overhead now. I cached
the last bsearch result, but most of the time is still there. I'm
baffled.
Before:
------------------------------------------------------------------------------------------------
Benchmark Time CPU Iterations
------------------------------------------------------------------------------------------------
BM_hb_ot_tags_from_script_and_language/COMMON abcd_XY 8.08 ns 8.05 ns 84500482
BM_hb_ot_tags_from_script_and_language/COMMON zh_CN 42.2 ns 42.1 ns 16722006
BM_hb_ot_tags_from_script_and_language/COMMON en_US 16.1 ns 16.0 ns 43461527
BM_hb_ot_tags_from_script_and_language/LATIN en_US 16.5 ns 16.5 ns 42448505
BM_hb_ot_tags_from_script_and_language/COMMON none 4.34 ns 4.33 ns 161290530
BM_hb_ot_tags_from_script_and_language/LATIN none 4.34 ns 4.33 ns 162339799
After:
------------------------------------------------------------------------------------------------
Benchmark Time CPU Iterations
------------------------------------------------------------------------------------------------
BM_hb_ot_tags_from_script_and_language/COMMON abcd_XY 8.13 ns 8.11 ns 80438134
BM_hb_ot_tags_from_script_and_language/COMMON zh_CN 40.0 ns 39.9 ns 17487939
BM_hb_ot_tags_from_script_and_language/COMMON en_US 12.7 ns 12.7 ns 55124394
BM_hb_ot_tags_from_script_and_language/LATIN en_US 13.1 ns 13.0 ns 53660125
BM_hb_ot_tags_from_script_and_language/COMMON none 4.61 ns 4.60 ns 151394104
BM_hb_ot_tags_from_script_and_language/LATIN none 4.70 ns 4.68 ns 150402847
2022-05-17 16:21:02 -06:00
Behdad Esfahbod
Garret Rieger
David Corbett