To create heuristics for determining when HTM is likely to speed up a transaction, benchmarks are necessary.
If anyone reading this has a few free moments, and a CPU that supports transactional memory (some haswell processors, or later), I would be grateful if you would help out.
Need your cpuinfo.
$ cat /proc/cpuinfo
... output here ...
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro13,3
Processor Name: Intel Core i7
Processor Speed: 2.9 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 8 MB
$ ./x.py bench
test bench_abort ... bench: 49,516,424 ns/iter (+/- 2,894,024)
test bench_tx0000 ... bench: 12,223,724 ns/iter (+/- 832,878)
test bench_tx0001 ... bench: 12,501,338 ns/iter (+/- 1,302,260)
test bench_tx0002 ... bench: 12,575,727 ns/iter (+/- 1,187,649)
test bench_tx0004 ... bench: 12,615,560 ns/iter (+/- 1,315,751)
test bench_tx0008 ... bench: 12,570,609 ns/iter (+/- 1,079,593)
test bench_tx0016 ... bench: 12,489,782 ns/iter (+/- 1,333,362)
test bench_tx0024 ... bench: 20,527,809 ns/iter (+/- 2,620,641)
test bench_tx0032 ... bench: 21,912,395 ns/iter (+/- 2,646,718)
test bench_tx0040 ... bench: 22,725,125 ns/iter (+/- 2,352,237)
test bench_tx0048 ... bench: 23,449,303 ns/iter (+/- 2,910,261)
test bench_tx0056 ... bench: 24,562,059 ns/iter (+/- 2,760,177)
test bench_tx0064 ... bench: 14,486,932 ns/iter (+/- 767,444)
test bench_tx0072 ... bench: 14,776,765 ns/iter (+/- 1,522,511)
test bench_tx0080 ... bench: 15,262,921 ns/iter (+/- 1,356,767)
test bench_tx0112 ... bench: 17,002,269 ns/iter (+/- 1,317,870)
test bench_tx0120 ... bench: 17,277,812 ns/iter (+/- 1,579,734)
test bench_tx0128 ... bench: 17,917,132 ns/iter (+/- 2,082,900)
test bench_tx0256 ... bench: 26,625,425 ns/iter (+/- 1,667,125)
$ ./x.py test capacity --release -- --nocapture
Capacity: 30016
To create heuristics for determining when HTM is likely to speed up a transaction, benchmarks are necessary.
If anyone reading this has a few free moments, and a CPU that supports transactional memory (some haswell processors, or later), I would be grateful if you would help out.
Need your cpuinfo.
linux
macos, use system profiler
In the
swym-htmproject, there's ax.pyscript that can be run to create benchmarks.Path:
swym/swym-htm/x.pyMy output
Additionally, running
testwith nocapture will give a feel for the capacity of your cpu