Commit Graph

77 Commits

Author SHA1 Message Date
John Keiser fd44c2a2ff Merge pull request #927 from simdjson/dlemire/exposingthestringminifier
Exposing the string minifier.
2020-06-13 07:47:20 -07:00
John Keiser a86a82b39c Rename minify class to minifier so the minify() method is cleared up 2020-06-12 17:05:25 -07:00
Daniel Lemire 4dfbf98e4e Using a worker instead of a thread per batch (#920)
In the parse_many function, we have one thread doing the stage 1, while the main thread does stage 2. So if stage 1 and stage 2 take half the time, the parse_many could run at twice the speed. It is unlikely to do so. Still, we see benefits of about 40% due to threading.

To achieve this interleaving, we load the data in batches (blocks) of some size. In the current code (master), we create a new thread for each batch. Thread creation is expensive so our approach only works over sizeable batches. This PR improves things and makes parse_many faster when using small batches.

  This fixes our parse_stream benchmark which is just busted.
  This replaces the one-thread per batch routine by a worker object that reuses the same thread. In benchmarks, this allows us to get the same maximal speed, but with smaller processing blocks. It does not help much with larger blocks because the cost of the thread create gets amortized efficiently.
This PR makes parse_many beneficial over small datasets. It also makes us less dependent on the thread creation time.

Unfortunately, it is going to be difficult to say anything definitive in general. The cost of creating a thread varies widely depending on the OS. On some systems, it might be cheap, in others very expensive. It should be expected that the new code will depend less drastically on the performances of the underlying system, since we create juste one thread.

Co-authored-by: John Keiser <john@johnkeiser.com>
Co-authored-by: Daniel Lemire <lemire@gmai.com>
2020-06-12 16:51:18 -04:00
John Keiser fe01da077e Make threaded version work again 2020-06-07 16:21:00 -07:00
John Keiser ef63a84a3e Move document stream state to implementation 2020-06-07 16:20:44 -07:00
Daniel Lemire 7a69da16e4 Fixing issue 906 (#912)
* Fixing issue 906

* Safe patching.

* Now with explanations.

* Bumping up memory allocation.

* Putting the patch back.

* fallback fixes.

Co-authored-by: Daniel Lemire <lemire@gmai.com>
2020-06-05 15:37:09 -04:00
John Keiser 1aab4752e2 Store all parser state in the implementation 2020-06-01 12:15:54 -07:00
John Keiser a3a9bde83e Move DOM parsing into concrete interface implementation 2020-06-01 12:14:09 -07:00
Daniel Lemire 40d57da83c fixes issue 891 (#893) 2020-05-20 11:54:53 -04:00
John Keiser e6c9dfbd91 Make include files more fine-grained 2020-05-19 14:42:04 -07:00
John Keiser 7ad4020829 Make main compilation chunks into .cpp files 2020-05-19 13:32:35 -07:00
John Keiser a476531524 Share ref_address everywhere it's used 2020-05-19 13:30:34 -07:00
Daniel Lemire 2a6e6b3dbd Cleaning string_view (#872)
* Cleaning string_view

* Corrected typo

* Alignment.
2020-05-10 16:05:52 -04:00
John Keiser 1d06624d38 Unset /D_CRT_SECURE_NO_WARNINGS
- Also localize DISABLE_DEPRECATED_WARNING so that we catch other
  deprecations
2020-05-04 11:35:05 -07:00
Pavel P d40069a018 Disable deprecation warnings for VS builds
fopen/getenv are standard c++ that are not deprecated.
2020-05-04 11:34:00 -07:00
Daniel Lemire fc1ddcd2f8 Faster case-insensitive comparisons. (#837)
* Faster case-insensitive comparisons.
2020-04-30 15:52:28 -04:00
Nong Li 0f9dbf84b7 Fix incorrect check for case insensitive key lookup (#824) 2020-04-29 13:55:28 -04:00
ostri d4239aaa8f default initialisaiton (#779)
* padded_string.* default initialisation
parsedjson_iterator - copy constructor; depth_index not necessary
2020-04-23 18:32:11 -04:00
ostri 87acab0846 elimination of most of g++ -Weffc++ warnings (#764)
Co-authored-by: Matjaž Ostroveršnik <ostri@localhost.localdomain>
Co-authored-by: Daniel Lemire <lemire@gmail.com>
2020-04-23 10:06:44 -04:00
John Keiser d4a37f6ef5 Enable conversion warnings on Linux and Windows 2020-04-22 14:21:30 -07:00
John Keiser 3e9e14f4d6 Reenable deprecation warnings on Windows 2020-04-22 08:53:19 -07:00
John Keiser 289cc3e7a0 Treat warnings as errors during compilation 2020-04-15 19:59:38 -07:00
John Keiser 7480b87e07 Merge pull request #693 from simdjson/jkeiser/cmake-quickstartcpp
Add C++11 tests to cmake
2020-04-15 19:53:14 -07:00
Daniel Lemire befa6423be This massively improves the performance of tight loops relying on a type() call. (#721)
* This massively improves the performance of tight loops relying on a type() call.

* Adding a few more benchmarks
2020-04-15 20:45:40 -04:00
John Keiser fd418f568c Fix c++11 warnings on clang
- namespace x::y is C++17
- static_assert requires message in C++11
2020-04-15 17:27:48 -07:00
Daniel Lemire 326c175dcb Massive performance boost for get<double>. (#719)
* Massive performance boost for get<double>.
2020-04-15 20:09:45 -04:00
Daniel Lemire b523c43927 Can we provide a size() function to arrays and objects? (eager approach) [TO BE MERGED] (#690)
* This is an implementation of "size()" for arrays and objects.
* Adding benchmark
* Adding a size() remark in the documentation.
* Extending size() to result types.
2020-04-15 10:15:48 -04:00
Paul Dreik 75545ff70d ref qualify parser methods to avoid use of dangling objects (#703)
To avoid using data belonging to a temporary, the parse functions are ref qualified to get a compile error if used on an rvalue. See https://github.com/simdjson/simdjson/issues/696

Compilation tests are also added, to make sure bad usage fails to compile.

Reviewed by jkeiser.
2020-04-15 09:57:52 +02:00
John Keiser 1e30b6e334 Compile under C++ 11 2020-04-08 14:00:13 -07:00
John Keiser 406240bae3 Support C++ 14 2020-04-08 14:00:13 -07:00
Dirk Eddelbuettel 12ed6336b1 remove three trailing semicolons that -pedantic dislikes (#673) 2020-04-02 21:06:25 -04:00
John Keiser 13aee51011 Add element.type() for type switching 2020-04-02 14:07:19 -07:00
John Keiser d93af1161d Remove set_capacity, replace with allocate
Makes allocation point more predictable
2020-03-30 13:49:54 -07:00
John Keiser 434776db1a Deprecate more things 2020-03-30 13:48:43 -07:00
John Keiser 7ed65e42d7 Add actual examples from basics.md to readme_examples 2020-03-29 16:28:29 -07:00
John Keiser ea8a5020e2 Remove array indexer, make object indexer key lookup 2020-03-28 15:56:43 -07:00
John Keiser 622d9c9480 Replace as_X and is_X with get<T> and is<T> 2020-03-28 15:29:53 -07:00
John Keiser 62da98aef6 Rename dom::stream to dom::document_stream 2020-03-28 13:42:24 -07:00
John Keiser 03746b966b Move document/element/etc. under dom 2020-03-28 13:42:21 -07:00
John Keiser 836e1fc330 Use simdjson_result for all _result classes 2020-03-28 12:03:05 -07:00
John Keiser e836c28008 Deprecate parser error code methods
- Also make competitions compile without warnings
2020-03-28 10:13:20 -07:00
John Keiser 748df8d109 Use string_view instead of string/char* where possible 2020-03-27 13:11:41 -07:00
John Keiser 5ad405006c Return document::element from parse, load, parse_many, load_many 2020-03-27 12:24:41 -07:00
John Keiser e3efbcddc1 Cast padded_string to string_view instead of string 2020-03-27 09:13:11 -07:00
John Keiser c14b2fb36c Remove const char* variants for at_key()
- Remove const char * variants for at_key(), string_view covers them
- Add at_key_case_insensitive variants on *_result
- Add at(), at_key(), at_key_case_insensitive() tests
2020-03-27 09:09:08 -07:00
John Keiser f0f111b387 Make ParsedJson::Iterator backcompat test 2020-03-27 09:07:39 -07:00
Daniel Lemire abb0bf9247 Fixed basictests 2020-03-26 19:40:29 -04:00
John Keiser 56841bcede Fix conversion error on Windows 2020-03-26 12:48:07 -07:00
John Keiser 006cc2ed60 Remove simdjson_move_result 2020-03-26 12:48:03 -07:00
John Keiser 2e420169c3 Remove document::parse and document::load 2020-03-26 10:13:09 -07:00