Add benchmark utils

8 files changed, 117 insertions, 0 deletions

diff --git a/bench b/bench
new file mode 100755
index 0000000..d3f2a1f
--- /dev/null
+++ b/bench
@@ -0,0 +1,8 @@
+benchout="benches/$(./describe)"
+echo
+echo writing "$benchout"
+echo
+go test -bench . -benchtime 3s -benchmem | tee "$benchout"
+echo
+echo wrote "$benchout"
+echo
diff --git a/benches/47e5cc6 b/benches/47e5cc6
new file mode 100644
index 0000000..fa2569d
--- /dev/null
+++ b/benches/47e5cc6
@@ -0,0 +1,18 @@
+goos: darwin
+goarch: amd64
+pkg: github.com/anacrolix/stm
+BenchmarkAtomicGet-12                 	222465180	        15.2 ns/op	       0 B/op	       0 allocs/op
+BenchmarkAtomicSet-12                 	43109235	        99.3 ns/op	      32 B/op	       1 allocs/op
+BenchmarkIncrementSTM-12              	    1354	   2385370 ns/op	   88224 B/op	    5091 allocs/op
+BenchmarkIncrementMutex-12            	   14100	    254194 ns/op	      18 B/op	       2 allocs/op
+BenchmarkIncrementChannel-12          	    6942	    629400 ns/op	     126 B/op	       1 allocs/op
+BenchmarkReadVarSTM-12                	   12786	    261026 ns/op	     112 B/op	       3 allocs/op
+BenchmarkReadVarMutex-12              	   13377	    278505 ns/op	      29 B/op	       2 allocs/op
+BenchmarkReadVarChannel-12            	   13536	    265976 ns/op	     112 B/op	       2 allocs/op
+BenchmarkPingPong4-12                 	  504828	      7014 ns/op	    1009 B/op	      43 allocs/op
+BenchmarkPingPong-12                  	  722802	      4928 ns/op	     269 B/op	      11 allocs/op
+BenchmarkThunderingHerdCondVar-12     	    3708	    861135 ns/op	     194 B/op	       6 allocs/op
+BenchmarkThunderingHerd-12            	       8	 429388582 ns/op	 1807664 B/op	  165867 allocs/op
+BenchmarkInvertedThunderingHerd-12    	     307	  12490034 ns/op	 3033682 B/op	   46298 allocs/op
+PASS
+ok  	github.com/anacrolix/stm	64.909s
diff --git a/benches/5df0d3b b/benches/5df0d3b
new file mode 100644
index 0000000..ff73a58
--- /dev/null
+++ b/benches/5df0d3b
@@ -0,0 +1,18 @@
+goos: darwin
+goarch: amd64
+pkg: github.com/anacrolix/stm
+BenchmarkAtomicGet-12                 	239515498	        15.1 ns/op	       0 B/op	       0 allocs/op
+BenchmarkAtomicSet-12                 	40938225	        88.5 ns/op	      32 B/op	       1 allocs/op
+BenchmarkIncrementSTM-12              	    1842	   2576851 ns/op	   88610 B/op	    5088 allocs/op
+BenchmarkIncrementMutex-12            	   14599	    247228 ns/op	      18 B/op	       2 allocs/op
+BenchmarkIncrementChannel-12          	    5917	    546238 ns/op	     127 B/op	       1 allocs/op
+BenchmarkReadVarSTM-12                	   14252	    264976 ns/op	     112 B/op	       3 allocs/op
+BenchmarkReadVarMutex-12              	   13539	    265940 ns/op	      29 B/op	       2 allocs/op
+BenchmarkReadVarChannel-12            	   14528	    262082 ns/op	     112 B/op	       2 allocs/op
+BenchmarkPingPong4-12                 	  524444	      6889 ns/op	    1015 B/op	      43 allocs/op
+BenchmarkPingPong-12                  	  757886	      4619 ns/op	     277 B/op	      11 allocs/op
+BenchmarkThunderingHerdCondVar-12     	    4435	    810640 ns/op	     190 B/op	       6 allocs/op
+BenchmarkThunderingHerd-12            	       7	 455571474 ns/op	 1992417 B/op	  186304 allocs/op
+BenchmarkInvertedThunderingHerd-12    	     295	  12936709 ns/op	 3048421 B/op	   46204 allocs/op
+PASS
+ok  	github.com/anacrolix/stm	65.306s
diff --git a/benches/6efb032 b/benches/6efb032
new file mode 100644
index 0000000..0fd6832
--- /dev/null
+++ b/benches/6efb032
@@ -0,0 +1,18 @@
+goos: darwin
+goarch: amd64
+pkg: github.com/anacrolix/stm
+BenchmarkAtomicGet-12                 	260272291	        14.7 ns/op	       0 B/op	       0 allocs/op
+BenchmarkAtomicSet-12                 	 9419424	       386 ns/op	      32 B/op	       1 allocs/op
+BenchmarkIncrementSTM-12              	    1682	   2711035 ns/op	  782649 B/op	   12175 allocs/op
+BenchmarkIncrementMutex-12            	   13474	    257079 ns/op	      18 B/op	       2 allocs/op
+BenchmarkIncrementChannel-12          	    6813	    580331 ns/op	     125 B/op	       1 allocs/op
+BenchmarkReadVarSTM-12                	   12924	    268537 ns/op	     112 B/op	       3 allocs/op
+BenchmarkReadVarMutex-12              	   13797	    265680 ns/op	      27 B/op	       2 allocs/op
+BenchmarkReadVarChannel-12            	   14151	    257168 ns/op	     112 B/op	       2 allocs/op
+BenchmarkPingPong4-12                 	  397308	      9367 ns/op	    5796 B/op	     116 allocs/op
+BenchmarkPingPong-12                  	  625650	      6469 ns/op	    1489 B/op	      29 allocs/op
+BenchmarkThunderingHerdCondVar-12     	    3400	    901840 ns/op	     187 B/op	       6 allocs/op
+BenchmarkThunderingHerd-12            	     274	  12976135 ns/op	 2783426 B/op	   42759 allocs/op
+BenchmarkInvertedThunderingHerd-12    	     232	  16377186 ns/op	 6113834 B/op	   83333 allocs/op
+PASS
+ok  	github.com/anacrolix/stm	64.875s
diff --git a/benches/a3e788d b/benches/a3e788d
new file mode 100644
index 0000000..c7068b4
--- /dev/null
+++ b/benches/a3e788d
@@ -0,0 +1,18 @@
+goos: darwin
+goarch: amd64
+pkg: github.com/anacrolix/stm
+BenchmarkAtomicGet-12                 	257472974	        16.1 ns/op	       0 B/op	       0 allocs/op
+BenchmarkAtomicSet-12                 	 9493024	       403 ns/op	      32 B/op	       1 allocs/op
+BenchmarkIncrementSTM-12              	    1496	   2429250 ns/op	   86890 B/op	    4981 allocs/op
+BenchmarkIncrementMutex-12            	   12849	    277652 ns/op	      18 B/op	       2 allocs/op
+BenchmarkIncrementChannel-12          	    6734	    549540 ns/op	     125 B/op	       1 allocs/op
+BenchmarkReadVarSTM-12                	   13473	    269947 ns/op	     112 B/op	       3 allocs/op
+BenchmarkReadVarMutex-12              	   13050	    274890 ns/op	      27 B/op	       2 allocs/op
+BenchmarkReadVarChannel-12            	   14524	    259326 ns/op	     112 B/op	       2 allocs/op
+BenchmarkPingPong4-12                 	  666799	      6055 ns/op	     982 B/op	      43 allocs/op
+BenchmarkPingPong-12                  	  807982	      4246 ns/op	     216 B/op	      10 allocs/op
+BenchmarkThunderingHerdCondVar-12     	    3808	    938140 ns/op	     182 B/op	       6 allocs/op
+BenchmarkThunderingHerd-12            	     282	  13158514 ns/op	  835252 B/op	   21804 allocs/op
+BenchmarkInvertedThunderingHerd-12    	     289	  12631693 ns/op	 3056736 B/op	   46881 allocs/op
+PASS
+ok  	github.com/anacrolix/stm	64.562s
diff --git a/benches/bf1dcaa b/benches/bf1dcaa
new file mode 100644
index 0000000..8b84869
--- /dev/null
+++ b/benches/bf1dcaa
@@ -0,0 +1,18 @@
+goos: darwin
+goarch: amd64
+pkg: github.com/anacrolix/stm
+BenchmarkAtomicGet-12                 	279588327	        15.7 ns/op	       0 B/op	       0 allocs/op
+BenchmarkAtomicSet-12                 	 9108991	       389 ns/op	      32 B/op	       1 allocs/op
+BenchmarkIncrementSTM-12              	    1341	   2766173 ns/op	   87046 B/op	    4981 allocs/op
+BenchmarkIncrementMutex-12            	   13270	    286882 ns/op	      20 B/op	       2 allocs/op
+BenchmarkIncrementChannel-12          	    6426	    591176 ns/op	     127 B/op	       1 allocs/op
+BenchmarkReadVarSTM-12                	   13999	    259642 ns/op	     112 B/op	       3 allocs/op
+BenchmarkReadVarMutex-12              	   13486	    277372 ns/op	      27 B/op	       2 allocs/op
+BenchmarkReadVarChannel-12            	   13808	    258589 ns/op	     112 B/op	       2 allocs/op
+BenchmarkPingPong4-12                 	  630103	      6051 ns/op	     950 B/op	      43 allocs/op
+BenchmarkPingPong-12                  	  890810	      4993 ns/op	     214 B/op	      10 allocs/op
+BenchmarkThunderingHerdCondVar-12     	    3889	    879404 ns/op	     187 B/op	       6 allocs/op
+BenchmarkThunderingHerd-12            	     294	  13252970 ns/op	  708701 B/op	   21736 allocs/op
+BenchmarkInvertedThunderingHerd-12    	     238	  13073573 ns/op	 3090179 B/op	   46844 allocs/op
+PASS
+ok  	github.com/anacrolix/stm	65.117s
diff --git a/benches/e0a706d b/benches/e0a706d
new file mode 100644
index 0000000..2c26910
--- /dev/null
+++ b/benches/e0a706d
@@ -0,0 +1,18 @@
+goos: darwin
+goarch: amd64
+pkg: github.com/anacrolix/stm
+BenchmarkAtomicGet-12                 	246978188	        14.9 ns/op	       0 B/op	       0 allocs/op
+BenchmarkAtomicSet-12                 	36452851	        99.9 ns/op	      32 B/op	       1 allocs/op
+BenchmarkIncrementSTM-12              	    1520	   2231932 ns/op	   90997 B/op	    5081 allocs/op
+BenchmarkIncrementMutex-12            	   14769	    249063 ns/op	      16 B/op	       2 allocs/op
+BenchmarkIncrementChannel-12          	    7608	    525664 ns/op	     126 B/op	       1 allocs/op
+BenchmarkReadVarSTM-12                	   14209	    268316 ns/op	     112 B/op	       3 allocs/op
+BenchmarkReadVarMutex-12              	   13527	    269832 ns/op	      28 B/op	       2 allocs/op
+BenchmarkReadVarChannel-12            	   14137	    251438 ns/op	     112 B/op	       2 allocs/op
+BenchmarkPingPong4-12                 	  267039	     12062 ns/op	    1254 B/op	      60 allocs/op
+BenchmarkPingPong-12                  	  538322	      5983 ns/op	     264 B/op	      12 allocs/op
+BenchmarkThunderingHerdCondVar-12     	    3691	    849242 ns/op	     191 B/op	       6 allocs/op
+BenchmarkThunderingHerd-12            	       1	62422007724 ns/op	 1626920 B/op	   54434 allocs/op
+BenchmarkInvertedThunderingHerd-12    	     211	  16067788 ns/op	 3205018 B/op	   56345 allocs/op
+PASS
+ok  	github.com/anacrolix/stm	119.563s
diff --git a/describe b/describe
new file mode 100755
index 0000000..77a418b
--- /dev/null
+++ b/describe
@@ -0,0 +1 @@
+echo $(git rev-parse --short HEAD)$(git diff --quiet || echo -dirty)