8f3ee80d46
Drop C89/C90 support and MSVC prior to Visual Studio 2015.
...
upb previously attempted to support C89 and pre-2015 versions
of Visual Studio. This was to support older compilers with
limited C99 support (particularly MSVC). But as of last August,
even gRPC has dropped support for MSVC prior to 2015
c87276d058
4 years ago
46eb82467a
Added comment to decode_fast.h.
4 years ago
bd9f8f580d
Fixed a few bugs with the fast decoder.
...
1. For long tags we were putting table entries in the wrong slot.
2. For repeated strings, when the buffer flipped to no longer alias we
were failing to notice and kept aliasing anyway.
4 years ago
021db6fcd5
Allow larger tags into the table if they are unique mod 31.
...
Also fixed a bug with fixed packed in decode_fast.c.
4 years ago
86d9908c55
Fastdecode support for packed fields.
...
This is not very optimized yet. There is a lot of room to
optimize it further.
4 years ago
e3e797b680
Added fasttable support for oneofs.
4 years ago
7ffa9c181a
Fixed some small bugs and performance problems in string copying.
...
Before this CL, with alias=false:
------------------------------------------------------------------------------
Benchmark Time CPU Iterations
------------------------------------------------------------------------------
BM_Parse_Upb_FileDesc_WithInitialBlock 3715 ns 3715 ns 188916 1.88206GB/s
Performance counter stats for 'bazel-bin/benchmarks/benchmark --benchmark_filter=BM_Parse_Upb_FileDesc_WithInitialBlock':
1,122.92 msec task-clock # 0.979 CPUs utilized
3 context-switches # 0.003 K/sec
0 cpu-migrations # 0.000 K/sec
196 page-faults # 0.175 K/sec
4,144,746,717 cycles # 3.691 GHz
15,351,966,804 instructions # 3.70 insn per cycle
2,590,281,905 branches # 2306.728 M/sec
2,996,157 branch-misses # 0.12% of all branches
1.146615328 seconds time elapsed
1.115578000 seconds user
0.008025000 seconds sys
After this CL:
------------------------------------------------------------------------------
Benchmark Time CPU Iterations
------------------------------------------------------------------------------
BM_Parse_Upb_FileDesc_WithInitialBlock 3554 ns 3554 ns 197527 1.9674GB/s
Performance counter stats for 'bazel-bin/benchmarks/benchmark --benchmark_filter=BM_Parse_Upb_FileDesc_WithInitialBlock':
1,105.34 msec task-clock # 0.982 CPUs utilized
3 context-switches # 0.003 K/sec
0 cpu-migrations # 0.000 K/sec
197 page-faults # 0.178 K/sec
4,077,736,892 cycles # 3.689 GHz
15,442,709,352 instructions # 3.79 insn per cycle
2,435,131,301 branches # 2203.068 M/sec
2,643,775 branch-misses # 0.11% of all branches
1.125393845 seconds time elapsed
1.097770000 seconds user
0.008012000 seconds sys
4 years ago
e2c709e047
Repeated string and primitive support.
...
Much of the code was adapted from Gerben's code in:
6333031195
4 years ago
25db40bc30
Fixed upb::InlinedArena, which was compeltely broken.
4 years ago
d81ba58215
Optimized short string copying.
...
This sped up the alias=false case:
Before:
------------------------------------------------------------------------------
Benchmark Time CPU Iterations
------------------------------------------------------------------------------
BM_Parse_Upb_FileDesc_WithInitialBlock 4562 ns 4562 ns 153251 1.53276GB/s
Performance counter stats for 'bazel-bin/benchmarks/benchmark --benchmark_filter=BM_Parse_Upb_FileDesc_WithInitialBlock':
1,216.65 msec task-clock # 0.936 CPUs utilized
6 context-switches # 0.005 K/sec
0 cpu-migrations # 0.000 K/sec
200 page-faults # 0.164 K/sec
4,490,925,650 cycles # 3.691 GHz
16,516,403,731 instructions # 3.68 insn per cycle
2,828,536,650 branches # 2324.861 M/sec
5,425,830 branch-misses # 0.19% of all branches
1.300178903 seconds time elapsed
1.211475000 seconds user
0.072207000 seconds sys
After:
------------------------------------------------------------------------------
Benchmark Time CPU Iterations
------------------------------------------------------------------------------
BM_Parse_Upb_FileDesc_WithInitialBlock 3587 ns 3587 ns 195749 1.94935GB/s
Performance counter stats for 'bazel-bin/benchmarks/benchmark --benchmark_filter=BM_Parse_Upb_FileDesc_WithInitialBlock':
1,109.69 msec task-clock # 0.930 CPUs utilized
5 context-switches # 0.005 K/sec
0 cpu-migrations # 0.000 K/sec
198 page-faults # 0.178 K/sec
4,094,010,257 cycles # 3.689 GHz
15,672,677,812 instructions # 3.83 insn per cycle
2,589,291,160 branches # 2333.346 M/sec
3,306,386 branch-misses # 0.13% of all branches
1.193221789 seconds time elapsed
1.102538000 seconds user
0.072166000 seconds sys
4 years ago
f3a2a79349
More optimization, back up to 2.56GB/s.
4 years ago
199c914295
Simplify push/pop when msg fits in the current buffer.
4 years ago
d5f5db2729
Put string-copying field parser into a separate function.
...
This helps to regain a bit of lost perf. Now at 2.3GB/s.
4 years ago
f4adbe0698
Optimized varint decoding from Gerben.
...
This speeds things up but costs some code size.
name old time/op new time/op delta
ArenaOneAlloc 21.1ns ± 0% 21.3ns ± 0% +1.33% (p=0.000 n=12+12)
ArenaInitialBlockOneAlloc 6.02ns ± 0% 6.02ns ± 0% ~ (p=0.579 n=10+10)
LoadDescriptor_Upb 111µs ± 1% 110µs ± 1% -0.91% (p=0.003 n=11+12)
LoadDescriptor_Proto2 258µs ± 1% 258µs ± 1% ~ (p=0.674 n=10+12)
Parse_Upb_FileDesc_WithArena 11.2µs ± 0% 10.4µs ± 0% -6.67% (p=0.000 n=12+12)
Parse_Upb_FileDesc_WithInitialBlock 10.6µs ± 0% 10.1µs ± 0% -4.48% (p=0.000 n=12+11)
SerializeDescriptor_Proto2 5.36µs ± 5% 5.36µs ± 3% ~ (p=0.880 n=12+11)
SerializeDescriptor_Upb 11.9µs ± 0% 12.0µs ± 0% +0.81% (p=0.000 n=12+12)
FILE SIZE VM SIZE
-------------- --------------
+23% +1.11Ki +24% +1.06Ki upb/decode.c
+15% +560 +15% +560 decode_msg
+140% +240 +188% +240 decode_longvarint64
[NEW] +174 [NEW] +128 decode_isdonefallback
+56% +160 +65% +160 upb_decode
-49.7% -1.06Ki [ = ] 0 [Unmapped]
+0.0% +48 +0.9% +1.06Ki TOTAL
4 years ago
48689df72e
Eliminated bounds checks inside parsing a field.
...
Each field parser gets 16 bytes of slop. This requires using a patch
buffer at end-of-buffer.
This addes 80% of what is needed to support a pull parser with a data
callback, since the main parser is now tolerant to buffer flips.
There is a ~4% performance regression and 12% code size regression in
upb/decode.c:
name old time/op new time/op delta
ArenaOneAlloc 21.0ns ± 0% 21.6ns ± 0% +2.87% (p=0.000 n=12+12)
ArenaInitialBlockOneAlloc 6.02ns ± 0% 6.02ns ± 0% +0.09% (p=0.001 n=11+12)
LoadDescriptor_Upb 114µs ± 1% 115µs ± 1% +0.96% (p=0.000 n=11+12)
LoadDescriptor_Proto2 260µs ± 1% 261µs ± 1% +0.55% (p=0.033 n=12+12)
Parse_Upb_FileDesc_WithArena 10.8µs ± 0% 11.2µs ± 0% +3.43% (p=0.000 n=11+11)
Parse_Upb_FileDesc_WithInitialBlock 10.5µs ± 0% 10.9µs ± 0% +3.68% (p=0.000 n=12+12)
SerializeDescriptor_Proto2 5.25µs ± 3% 5.42µs ± 5% +3.39% (p=0.007 n=12+12)
SerializeDescriptor_Upb 12.0µs ± 0% 12.5µs ± 0% +4.14% (p=0.000 n=12+11)
FILE SIZE VM SIZE
-------------- --------------
+12% +606 +12% +560 upb/decode.c
+7.9% +288 +7.9% +288 decode_msg
[NEW] +174 [NEW] +128 decode_isdonefallback
+56% +160 +65% +160 upb_decode
-9.3% -16 -12.5% -16 decode_longvarint64
-25.5% -558 [ = ] 0 [Unmapped]
+0.0% +48 +0.4% +560 TOTAL
4 years ago
4ea81ab107
Fixed pedantic warning.
4 years ago
6399b31f4b
Removed ULL constants in json_decode.c.
4 years ago
c8ae197e64
Removed "U" suffixes, they are not necessary.
4 years ago
bc1e0b314f
Fixed some strict C89 errors.
4 years ago
2c1664906a
Removed license comments and upb_amalgamation for google3.
4 years ago
b7dc77415a
Added licenses() to all BUILD files.
4 years ago
e3f41de6c7
Split monolithic BUILD file into many build files.
4 years ago
bf8e08074c
Added a few more comments.
4 years ago
3238821315
Gave fast table entry a nicer name.
4 years ago
2a574d3d01
Added a bunch of comments for readability.
4 years ago
c2901eeee1
Added missing #includes (caught by Blaze).
4 years ago
c10b24ffb2
Simplified switch().
4 years ago
ded2e657a7
Added compatibility with old generated code.
...
Until everyone can regenerate their code, we need to provide
compatible semantics with the old generated code.
Also fixed a bug where enums were allocated 8 bytes instead
of 4.
4 years ago
5b0c5c7d4a
Dispatch inline.
4 years ago
75edd3e59c
Changed to use table pairs, seems to ever-so-slightly regress.
4 years ago
91eb09b1bc
Add a few comments.
4 years ago
7ccf5650c7
If we encounter "null" for a non-NullValue enum, throw an error.
4 years ago
0a3a94a12f
Updated to a new version of protobuf and fixed a few conformance tests.
...
When `google.protobuf.NullValue` appears on its own, we need to parse
and serialize it as plain JSON "null" value.
4 years ago
504e105420
undef UPB_ASAN.
4 years ago
ab96d1ec41
Removed extraneous C++-style comment.
4 years ago
d5096f9ee8
Fixed bug in addunknown and added ASAN poisoning.
4 years ago
f01efe8b64
Removed another C99-ism.
4 years ago
1749082bbb
Removed C99-ism.
4 years ago
f2ddc15d76
Bugfix: initialize fastlimit and fastend.
4 years ago
4053805759
Bugfixes
4 years ago
2339fc779c
Updated obsolete comment.
4 years ago
b393849bbd
Updated obsolete comment.
4 years ago
ebe53f8590
Fixed compile error.
4 years ago
b37f82b58b
Fixed compile error.
4 years ago
71749b7caf
Implemented inline array allocation, and moved type->lg2 map to reflection.
4 years ago
9557b97acc
Implemented inline array allocation, and moved type->lg2 map to reflection.
4 years ago
b58d2a0ee6
Shrink overhead of message representation.
4 years ago
0bf063a2ca
Shrink overhead of message representation.
4 years ago
d87ceeacab
Shave off one more store.
4 years ago
ddc52ab9d6
Shave off one more store.
4 years ago
Joshua Haberman
Gerben Stavenga