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32 commits

Author SHA1 Message Date
SChernykh
f6c50b5393 Fix RandomX crash when compiled with fortify_source 2024-03-20 21:24:02 +01:00
SChernykh
93c07e1d34 RandomX: optimized CFROUND elimination more 2022-09-16 14:11:27 +02:00
SChernykh
9b1f020a8b Enabled IMUL_RCP optimization for light mode mining 
Better fix for #2377
 2021-05-17 11:26:40 +02:00
SChernykh
29cb416107 Fixed broken light mode mining on x86 2021-05-15 21:41:39 +02:00
SChernykh
3477f9fbc1 RandomX: optimized IMUL_RCP instruction 
+0.4% on AMD Zen2
+0.3% on AMD Zen3
+0.1% on Intel SandyBridge
+0.3% on rx/wow on Intel SandyBridge
 2021-04-19 17:43:58 +02:00
SChernykh
f62f4e6108 RandomX x86 JIT: remove redundant CFROUND 2021-01-07 16:20:00 +01:00
SChernykh
633aaccd9c Added config option for AVX2 dataset init 
-1 = Auto detect
0 = Always disabled
1 = Enabled if AVX2 is supported
 2020-12-19 16:18:49 +01:00
SChernykh
410313d933 Auto-detect the fastest code for dataset init 2020-12-19 13:59:28 +01:00
SChernykh
515a85e66c Dataset initialization with AVX2 (WIP) 2020-12-18 14:53:54 +01:00
XMRig
775867fc3e
Fixed secure JIT on Linux and code cleanup. 2020-12-12 19:18:47 +07:00
XMRig
ec62ded279
Added generic secure JIT support for RandomX. 2020-12-11 23:17:54 +07:00
SChernykh
0da3390d09 More static analysis fixes 2020-12-08 16:05:58 +01:00
SChernykh
50bdaba526 Fixed Debug build in Visual Studio 2020-10-27 14:08:36 +01:00
SChernykh
44dcded866 RandomX: added huge-pages-jit config parameter 
Set to false by default, gives 0.2% boost on Ryzen 7 3700X with 16 threads, but hashrate might be unstable on Ryzen between launches. Use with caution.
 2020-10-07 17:42:55 +02:00
SChernykh
9768bf65d1 RandomX improved performance of GCC compiled binaries 
JIT compilator was slower compared to MSVC compiled binary. Up to +0.1% speedup on rx/wow in Linux.
 2020-09-22 13:48:11 +02:00
SChernykh
c7476e076b RandomX refactoring, moved more stuff to compile time 
Small x86 JIT compiler speedup.
 2020-09-18 20:51:25 +02:00
SChernykh
abb3340cc7 RandomX JIT refactoring 
- Smaller memory footprint
- A bit faster overall
 2020-04-09 14:24:54 +02:00
SChernykh
131085be80 Optimized CFROUND 
Shorter version using BMI2 instructionns
 2020-02-21 19:00:58 +01:00
SChernykh
0caeb41bff Tuned JIT compiler 
0.3-0.4% speedup depending on CPU.
 2020-02-20 20:59:22 +01:00
SChernykh
d342968211 Added support for BMI2 instructions 2020-01-21 19:44:56 +01:00
SChernykh
f80177cbd3 Optimizations for AMD Bulldozer 
- Added support for XOP instructions
- Enabled Ryzen code for Bulldozer because it's faster there too
 2020-01-15 13:04:26 +01:00
SChernykh
c9f90e6770 Refactor Ryzen fix to fix compilation issues 2019-12-31 11:55:07 +02:00
SChernykh
7459677fd5 Add vzeroupper for processors with AVX 
To avoid false dependencies on upper 128 bits of YMM registers.
 2019-12-18 09:12:25 +01:00
SChernykh
763691fa4b More optimizations for Ryzen 2019-12-09 20:29:05 +01:00
SChernykh
d0df824599 Optimized dataset read for Ryzen CPUs 
Removed register dependency in dataset read, +0.8% speedup on average.
 2019-12-08 16:14:02 +01:00
SChernykh
84d7eb05f3 RandomX fixes 
Intel JCC erratum fix and various other improvements, see more here: https://www.phoronix.com/scan.php?page=article&item=intel-jcc-microcode&num=1
 2019-12-01 08:46:35 +01:00
SChernykh
10f9b29e03 Refactored JIT compiler for x86, small RandomX speedup 2019-10-05 21:40:21 +02:00
XMRig
6f5d175d12 Fix compile warning, mostly struct/class inconsistency. 2019-09-13 18:21:05 +07:00
SChernykh
2322e3bcf7 RandomX: optimized loading from scratchpad 
Prefetches scratchpad data as soon as possible to calculate data address for the next load.

Up to ~1.4% speedup on Ryzen 7 3700X @ 4.1 GHz, RAM 3200 MHz 14-14-14-28 with optimized sub-timings:
Variant|Before H/S|After H/S
-------|----------|---------
rx/0|8663|8777
rx/wow|9867|10009
rx/loki|8652|8731
 2019-09-11 19:10:01 +02:00
SChernykh
8b84d7650b Optimized RandomX JIT compiler 
Hashrate improved by 0.5-1.5% depending on RandomX version and CPU.
 2019-08-27 20:18:56 +02:00
XMRig
043989e8ee Resolved conflict between argon2 implementations. 2019-08-16 03:18:35 +07:00
SChernykh
6eb9d0963b Integrated RandomX, added RandomXL (Loki) 2019-07-01 20:11:51 +02:00