Commit Graph

19 Commits

Author SHA1 Message Date
John Keiser de8df0a05f Combined performance patch (5% overall, 15% stage 1) (#317)
* Allow -f

* Support parse -s (force sse)

* Simplify flatten_bits

- Add directly to base instead of storing variable
- Don't modify base_ptr after beginning of function
- Eliminate base variable and increment base_ptr instead

* De-unroll the flatten_bits loops

* Decrease dependencies in stage 1

- Do all finalize_structurals work before computing the quote mask; mask
  out the quote mask later
- Join find_whitespace_and_structurals and finalize_structurals into
  single find_structurals call, to reduce variable leakage
- Rework pseudo_pred algorithm to refer to "primitive" for clarity and some
  dependency reduction
- Rename quote_mask to in_string to describe what we're trying to
  achieve ("mask" could mean many things)
- Break up find_quote_mask_and_bits into find_quote_mask and
  invalid_string_bytes to reduce data leakage (i.e. don't expose quote bits
  or odd_ends at all to find_structural_bits)
- Genericize overflow methods "follows" and "follows_odd_sequence" for
  descriptiveness and possible lifting into a generic simd parsing library

* Mark branches as likely/unlikely

* Reorder and unroll+interleave stage 1 loop

* Nest the cnt > 16 branch inside cnt > 8
2019-10-01 12:01:08 -04:00
Daniel Lemire 3fb82502f7 This gets rid of the silly ALLOW_SAME_PAGE_BUFFER_OVERRUN (#268) 2019-08-09 17:36:32 -04:00
ioioioio c2eea8abba Style uniformization (#238)
* massive clang-format -style=LLVM

* naming harmonization

* adding commentary about sysinfoapi.h
2019-07-30 17:18:10 -04:00
Daniel Lemire eba02dc1b9 Runtime dispatch
* Attempt 1 - fn targeting

GCC won't work with templates with different targets, need to specialize all the way up the call stack.

* Compiles properly with cmake. Does not with the Makefile.

* Compilation works with Makefile

* instruction_set changes to architecture

* some aesthetic changes

* fix amalgation and tests + aesthetic changes

* This now compiles and passes tests under CLANG

* Minor correction.

* Trying to make it work on ARM

* Adding missing namespace

* Missing bracket

* Fixing minor compilation issues.

* Getting parse to use runtime dispatch

* Fixing amalgamation script.

* Making sure that NEON is supported.

* Fixing typo

* Merging https://github.com/lemire/simdjson/pull/229

* Manual merge of
https://github.com/lemire/simdjson/pull/229
by @jkeiser  (second part)

* Trying another way.

* Removing the paral.

* Fixing the make file

* Let us make the practice run long enough.

* Resolved the awful slowness.

* Cleaning the README.md

* With runtime dispatching, we should not need flags anymore.

* Changing isa detection file's name + fixing typos.
2019-07-28 22:46:33 -04:00
Daniel Lemire dcd0cb8080 Fix for https://github.com/lemire/simdjson/issues/58 (#168) 2019-05-19 12:25:27 -04:00
Daniel Lemire 47beaff152 Adding white-listing for memory sanitizer. 2019-05-19 11:18:54 -04:00
Daniel Lemire f75280ac9c Fix for issue 150 (#162)
* Checks for issue 150. We run through the test files with sanitizers on.

* Fix for issue 150: the remaining issues were an overrun on the depth capacity and an "off-by-1" overrun on tape capacity.

* Improving makefile.

* Safer git submodule command.

* Getting get 'git' on circleci
2019-05-09 20:51:33 -04:00
Daniel Lemire e370a65383 Fix for issues 32, 50, 131, 137
* Improving portability.

* Revisiting faulty logic regarding same-page overruns.

* Disabling same-page overruns under VS.

* Clarifying the documentation

* Fix for issue 131 + being more explicit regarding memory realloc.

* Fix for issue 137.

* removing "using namespace std" throughout. Fix for 50

* Introducing typed malloc/free.

* Introducing a custom class (padded_string) that solves several minor usability issues.

* Updating amalgamation for testing.
2019-05-09 17:59:51 -04:00
Daniel Lemire f0574d492c Fix for issue 154 (#157)
* Changes necessary to reproduce

https://github.com/lemire/simdjson/issues/154

* Fixing issue 154.
2019-05-08 22:33:11 -04:00
Geoff Langdale 2c23b375b2 Temporarily added a non-x86 definition of SIMDJSON_PADDING 2019-03-21 11:37:40 +11:00
Daniel Lemire df8f792183 Store the string lengths on the string tape (#101)
* Store string length in the string-tape item.
* Files are now limited to 4GB.
* Moving detection of unescaped chars to stage 1 to reduce the burden due to string parsing.

Fixes https://github.com/lemire/simdjson/issues/114

Fixes https://github.com/lemire/simdjson/issues/87
2019-03-13 19:32:57 -04:00
Daniel Lemire a24e701b4e First release (0.0.1) 2019-02-26 10:14:49 -05:00
Kai Wolf e7683820d5 Merge branch 'master' into fix_minor_problems 2019-02-25 21:05:29 +01:00
Egor Bogatov 83ab72079f Add link to C# version (#66)
* fix noiline for MSVC

* Add SimdJsonSharp link to README.md
2019-02-25 14:17:43 -05:00
Kai Wolf ff22e75f95 Apply minor readability fixes 2019-02-23 17:28:20 +01:00
Daniel Lemire 58d41923fd Porting to visual studio
Now builds on Visual Studio
2018-12-30 21:00:19 -05:00
Daniel Lemire bf4089b33b Removing custom types (more standard code). 2018-12-27 20:09:25 -05:00
Daniel Lemire e4703a383b Even safer. 2018-12-10 20:54:31 -05:00
Daniel Lemire e5707331e9 Some refactoring. 2018-11-30 09:37:57 -05:00