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android / platform / external / pigweed / e05fefd4
commite05fefd48b57c600193117da8035d729f3ac3e0e[log] [tgz]
authorTaylor Cramer <cramertj@google.com>Thu Feb 16 18:47:27 2023 +0000
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Feb 16 18:47:27 2023 +0000
tree1e5c0424e540c7395e64834b57ffbfdcbd578e54
parent6dd8df34fc8d17c2129143faaddf5d8e6f1917f4 [diff]
pw_tokenizer: Use datetime.isoformat

The isoformat functions are quite a bit faster than their format string
equivalents, and the `parse_csv` function is quite performance-sensitive
as this loop is run once for every token in a token database. This
change noticeably improved the performance of one downstream consumer.

N.B.: Token databases which represented dates using months and days
that were not padded two two digits will no longer be successfully
loaded. It doesn't seem like any such databases should have been
generated before using the old format string approach, but the previous
format-string based loading seems to have supported reading these types
of entries.

Bug: b/269511233
Change-Id: I01e6ef7a944d38190cddad90cf49d841efedbd68
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/129451
Pigweed-Auto-Submit: Taylor Cramer <cramertj@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
Reviewed-by: Wyatt Hepler <hepler@google.com>
3 files changed
tree: 1e5c0424e540c7395e64834b57ffbfdcbd578e54
  1. .allstar/
  2. .vscode/
  3. build_overrides/
  4. docker/
  5. docs/
  6. pw_allocator/
  7. pw_analog/
  8. pw_android_toolchain/
  9. pw_arduino_build/
  10. pw_assert/
  11. pw_assert_basic/
  12. pw_assert_log/
  13. pw_assert_tokenized/
  14. pw_assert_zephyr/
  15. pw_async/
  16. pw_base64/
  17. pw_bloat/
  18. pw_blob_store/
  19. pw_bluetooth/
  20. pw_bluetooth_hci/
  21. pw_bluetooth_profiles/
  22. pw_boot/
  23. pw_boot_cortex_m/
  24. pw_build/
  25. pw_build_info/
  26. pw_build_mcuxpresso/
  27. pw_bytes/
  28. pw_checksum/
  29. pw_chrono/
  30. pw_chrono_embos/
  31. pw_chrono_freertos/
  32. pw_chrono_stl/
  33. pw_chrono_threadx/
  34. pw_chrono_zephyr/
  35. pw_cli/
  36. pw_compilation_testing/
  37. pw_console/
  38. pw_containers/
  39. pw_cpu_exception/
  40. pw_cpu_exception_cortex_m/
  41. pw_crypto/
  42. pw_digital_io/
  43. pw_docgen/
  44. pw_doctor/
  45. pw_env_setup/
  46. pw_file/
  47. pw_function/
  48. pw_fuzzer/
  49. pw_hdlc/
  50. pw_hex_dump/
  51. pw_i2c/
  52. pw_i2c_mcuxpresso/
  53. pw_ide/
  54. pw_interrupt/
  55. pw_interrupt_cortex_m/
  56. pw_interrupt_zephyr/
  57. pw_intrusive_ptr/
  58. pw_kvs/
  59. pw_libc/
  60. pw_log/
  61. pw_log_android/
  62. pw_log_basic/
  63. pw_log_null/
  64. pw_log_rpc/
  65. pw_log_string/
  66. pw_log_tokenized/
  67. pw_log_zephyr/
  68. pw_malloc/
  69. pw_malloc_freelist/
  70. pw_metric/
  71. pw_minimal_cpp_stdlib/
  72. pw_module/
  73. pw_multisink/
  74. pw_package/
  75. pw_perf_test/
  76. pw_persistent_ram/
  77. pw_polyfill/
  78. pw_preprocessor/
  79. pw_presubmit/
  80. pw_protobuf/
  81. pw_protobuf_compiler/
  82. pw_random/
  83. pw_result/
  84. pw_ring_buffer/
  85. pw_router/
  86. pw_rpc/
  87. pw_rust/
  88. pw_snapshot/
  89. pw_software_update/
  90. pw_span/
  91. pw_spi/
  92. pw_status/
  93. pw_stm32cube_build/
  94. pw_stream/
  95. pw_string/
  96. pw_symbolizer/
  97. pw_sync/
  98. pw_sync_baremetal/
  99. pw_sync_embos/
  100. pw_sync_freertos/
  101. pw_sync_stl/
  102. pw_sync_threadx/
  103. pw_sync_zephyr/
  104. pw_sys_io/
  105. pw_sys_io_arduino/
  106. pw_sys_io_baremetal_lm3s6965evb/
  107. pw_sys_io_baremetal_stm32f429/
  108. pw_sys_io_emcraft_sf2/
  109. pw_sys_io_mcuxpresso/
  110. pw_sys_io_pico/
  111. pw_sys_io_stdio/
  112. pw_sys_io_stm32cube/
  113. pw_sys_io_zephyr/
  114. pw_system/
  115. pw_target_runner/
  116. pw_thread/
  117. pw_thread_embos/
  118. pw_thread_freertos/
  119. pw_thread_stl/
  120. pw_thread_threadx/
  121. pw_tls_client/
  122. pw_tls_client_boringssl/
  123. pw_tls_client_mbedtls/
  124. pw_tokenizer/
  125. pw_tool/
  126. pw_toolchain/
  127. pw_trace/
  128. pw_trace_tokenized/
  129. pw_transfer/
  130. pw_unit_test/
  131. pw_varint/
  132. pw_watch/
  133. pw_web/
  134. pw_work_queue/
  135. seed/
  136. targets/
  137. third_party/
  138. ts/
  139. zephyr/
  140. .dockerignore ⇨ .gitignore
  141. activate.sh ⇨ bootstrap.sh
  142. .bazelignore
  143. .bazelrc
  144. .black.toml
  145. .clang-format
  146. .clang-tidy
  147. .eslintrc.json
  148. .git-blame-ignore-revs
  149. .gitattributes
  150. .gitignore
  151. .gn
  152. .mypy.ini
  153. .prettierrc.js
  154. .pw_ide.yaml
  155. .pylintrc
  156. activate.bat
  157. Android.bp
  158. AUTHORS
  159. bootstrap.bat
  160. bootstrap.sh
  161. BUILD.bazel
  162. BUILD.gn
  163. BUILDCONFIG.gn
  164. CMakeLists.txt
  165. jest.config.ts
  166. Kconfig.zephyr
  167. LICENSE
  168. modules.gni
  169. OWNERS
  170. package-lock.json
  171. package.json
  172. PIGWEED_MODULES
  173. PW_PLUGINS
  174. README.md
  175. rollup.config.js
  176. tsconfig.json
  177. WORKSPACE
README.md

Pigweed

Pigweed is an open source collection of embedded-targeted libraries–or as we like to call them, modules. These modules are building blocks and infrastructure that enable faster and more reliable development on small-footprint MMU-less 32-bit microcontrollers like the STMicroelectronics STM32L452 or the Nordic nRF52832.

For more information please see our website: https://pigweed.dev/.

Links