Connector Switch
46e8816928
[libcxx] Optimize std::generate for segmented iterators ( #163006 )
...
Part of #102817 .
This patch attempts to optimize the performance of `std::generate` for
segmented iterators. Below are the benchmark numbers from
`libcxx\test\benchmarks\algorithms\modifying\generate.bench.cpp`. Test
cases that use segmented iterators have also been added.
- before
```
std::generate(deque<int>)/32 194 ns 193 ns 3733333
std::generate(deque<int>)/50 276 ns 276 ns 2488889
std::generate(deque<int>)/1024 5096 ns 5022 ns 112000
std::generate(deque<int>)/8192 40806 ns 40806 ns 17231
```
- after
```
std::generate(deque<int>)/32 106 ns 105 ns 6400000
std::generate(deque<int>)/50 139 ns 138 ns 4977778
std::generate(deque<int>)/1024 2713 ns 2699 ns 248889
std::generate(deque<int>)/8192 18983 ns 19252 ns 37333
```
---------
Co-authored-by: A. Jiang <de34@live.cn>
2025-10-20 19:37:33 +08:00
..
2024-12-18 21:10:27 +01:00
2024-11-06 12:10:06 +01:00
2024-11-06 12:10:06 +01:00
2024-12-18 21:10:27 +01:00
2024-04-22 22:13:58 +02:00
2025-01-08 11:12:59 -05:00
2025-10-02 11:15:33 +02:00
2025-10-07 14:42:11 +02:00
2024-11-06 12:10:06 +01:00
2024-11-12 23:03:52 +01:00
2023-12-18 14:01:33 -05:00
2025-10-07 14:42:11 +02:00
2024-11-06 12:10:06 +01:00
2025-10-07 14:42:11 +02:00
2024-12-18 21:10:27 +01:00
2025-03-19 11:51:21 -04:00
2025-10-17 07:41:24 +08:00
2025-10-17 07:41:24 +08:00
2024-12-18 21:10:27 +01:00
2024-12-18 21:10:27 +01:00
2024-09-12 21:18:43 +02:00
2024-09-12 21:18:43 +02:00
2023-12-15 17:10:16 +01:00
2025-10-09 17:57:59 +08:00
2025-07-25 16:27:34 +02:00
2025-07-25 16:27:34 +02:00
2025-07-25 16:27:34 +02:00
2023-12-18 14:01:33 -05:00
2025-10-20 19:37:33 +08:00
2023-12-18 14:01:33 -05:00
2024-01-25 15:48:46 -05:00
2024-01-25 15:48:46 -05:00
2024-01-25 15:48:46 -05:00
2024-01-25 15:48:46 -05:00
2024-01-25 15:48:46 -05:00
2023-12-18 14:01:33 -05:00
2024-12-18 21:10:27 +01:00
2025-03-19 07:42:23 +08:00
2024-09-12 21:18:43 +02:00
2024-12-18 21:10:27 +01:00
2024-09-12 21:18:43 +02:00
2025-10-07 14:42:11 +02:00
2024-12-18 21:10:27 +01:00
2024-12-18 21:10:27 +01:00
2023-12-18 14:01:33 -05:00
2025-01-08 11:12:59 -05:00
2025-10-07 14:42:11 +02:00
2024-11-06 10:39:19 +01:00
2024-12-18 21:10:27 +01:00
2025-10-07 14:42:11 +02:00
2025-01-20 18:00:15 +01:00
2024-09-12 21:18:43 +02:00
2024-09-12 21:18:43 +02:00
2024-12-18 21:10:27 +01:00
2025-03-27 09:05:37 -04:00
2023-12-18 14:01:33 -05:00
2024-09-12 21:18:43 +02:00
2024-09-16 15:06:20 -04:00
2024-09-12 21:18:43 +02:00
2025-10-07 14:42:11 +02:00
2025-10-07 14:42:11 +02:00
2025-10-07 14:42:11 +02:00
2024-01-25 15:48:46 -05:00
2024-09-12 21:18:43 +02:00
2024-01-25 15:48:46 -05:00
2025-04-05 13:46:11 +02:00
2025-09-08 12:00:04 +02:00
2025-09-08 12:00:04 +02:00
2023-12-18 14:01:33 -05:00
2023-12-18 14:01:33 -05:00
2024-09-16 15:06:20 -04:00
2024-03-18 08:29:44 +01:00
2024-01-25 15:48:46 -05:00
2025-10-07 14:42:11 +02:00
2024-03-18 08:29:44 +01:00
2025-10-07 14:42:11 +02:00
2024-11-06 12:10:06 +01:00
2024-11-06 12:10:06 +01:00
2024-11-06 12:10:06 +01:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-11-06 12:10:06 +01:00
2024-11-12 23:03:52 +01:00
2024-11-12 23:03:52 +01:00
2024-11-06 12:10:06 +01:00
2024-08-01 08:54:06 -04:00
2024-09-16 15:06:20 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-11-06 12:10:06 +01:00
2025-10-17 07:41:24 +08:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-09-16 15:06:20 -04:00
2024-08-01 08:54:06 -04:00
2024-09-30 08:30:16 -04:00
2025-06-18 12:22:47 -04:00
2025-06-18 12:22:47 -04:00
2024-09-16 15:06:20 -04:00
2024-09-16 15:06:20 -04:00
2024-08-01 08:54:06 -04:00
2025-03-20 01:59:32 +08:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2025-02-21 07:59:46 -05:00
2024-08-04 10:02:43 +02:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2025-03-27 09:05:37 -04:00
2025-03-27 09:05:37 -04:00
2024-08-01 08:54:06 -04:00
2025-03-27 09:05:37 -04:00
2025-03-27 09:05:37 -04:00
2024-08-01 08:54:06 -04:00
2024-10-30 11:51:55 +01:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-09-16 15:06:20 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-11-12 23:03:52 +01:00
2024-08-01 08:54:06 -04:00
2024-11-12 23:03:52 +01:00
2024-11-12 23:03:52 +01:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2025-03-06 09:23:55 +08:00
2025-03-07 01:27:48 +08:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2025-01-08 11:12:59 -05:00
2024-08-01 08:54:06 -04:00
2024-08-01 08:54:06 -04:00
2023-12-18 14:01:33 -05:00
2023-12-18 14:01:33 -05:00
2024-09-12 21:18:43 +02:00
2024-09-12 21:18:43 +02:00
2023-12-18 14:01:33 -05:00
2023-12-18 14:01:33 -05:00
2023-12-18 14:01:33 -05:00
2023-12-18 14:01:33 -05:00
2023-12-18 14:01:33 -05:00
2024-01-25 15:48:46 -05:00
2023-12-18 14:01:33 -05:00
2025-03-13 14:07:23 -04:00
2023-12-20 17:24:48 -08:00
2024-09-16 15:06:20 -04:00
2024-09-16 15:06:20 -04:00
2024-11-12 23:03:52 +01:00
2024-09-16 15:06:20 -04:00
2024-11-12 23:03:52 +01:00
2024-11-12 23:03:52 +01:00
2024-01-25 15:48:46 -05:00
2024-01-25 15:48:46 -05:00
2025-05-28 12:04:51 -04:00
2025-10-07 14:42:11 +02:00
2025-09-29 11:10:19 +02:00
2024-03-18 08:29:44 +01:00
2025-08-28 18:07:59 -04:00
2025-03-04 09:23:29 +08:00
2025-10-07 14:42:11 +02:00
2025-03-04 17:15:36 -05:00
2025-01-08 11:12:59 -05:00
2023-12-18 14:01:33 -05:00
2024-09-16 15:06:20 -04:00
2024-01-25 15:48:46 -05:00
2024-11-06 12:10:06 +01:00
2025-01-08 11:12:59 -05:00
2024-01-25 15:48:46 -05:00
2024-09-16 15:06:20 -04:00