Merge branch 'master' of https://github.com/clamchowder/Microbenchmarks

clamchowder · Oct 11, 2024 · 21218b0 · 21218b0
2 parents 037b35e + fd381a0
commit 21218b0
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Showing 6 changed files with 54 additions and 7 deletions.
diff --git a/InstructionRate/x86_instructionrate.c b/InstructionRate/x86_instructionrate.c
@@ -119,6 +119,7 @@ extern uint64_t aesencadd128(uint64_t iterations) __attribute((sysv_abi));
 extern uint64_t aesencfma128(uint64_t iterations) __attribute((sysv_abi));
 extern uint64_t aesencmul128(uint64_t iterations) __attribute((sysv_abi));
 extern uint64_t mix256faddintadd(uint64_t iterations) __attribute((sysv_abi));
+extern uint64_t movqtoxmmtest(uint64_t iterations) __attribute((sysv_abi));
 
 extern uint64_t fma4_256(uint64_t iterations) __attribute((sysv_abi));
 extern uint64_t fma4_128(uint64_t iterations) __attribute((sysv_abi));
@@ -448,6 +449,9 @@ int main(int argc, char *argv[]) {
   if (avx2Supported && (testName == NULL || argc > 1 && strncmp(argv[1], "fmul256", 6) == 0))
     printf("256-bit FMUL per clk: %.2f\n", measureFunction(iterations, clockSpeedGhz, mul256fp));
 
+  if (testName == NULL || argc > 1 && strncmp(argv[1], "movqtoxmm", 9) == 0) 
+    printf("MOVQ GPR <-> XMM: %.2f clocks\n", 1 / measureFunction(iterations, clockSpeedGhz, movqtoxmmtest));
+
   // integer multiply. zhaoxin appears to handle 16-bit and 64-bit multiplies differntly
   // unlike Intel/AMD CPUs that behave similarly regardless of register width
   if (testName == NULL || argc > 1 && strncmp(argv[1], "latmul16", 8) == 0)

diff --git a/InstructionRate/x86_instructionrate.s b/InstructionRate/x86_instructionrate.s
@@ -92,6 +92,7 @@
 .global add128int
 .global mul128int
 .global mix256faddintadd
+.global movqtoxmmtest
 
 .global pdeptest
 .global pexttest
@@ -5230,7 +5231,6 @@ fdivtest_loop:
   sub %r9, %rdi
   jnz fdivtest_loop
   movq %xmm1, %rax
-  vzeroupper
   pop %r8
   pop %r9
   ret 
@@ -5365,3 +5365,38 @@ fmuldenormtest_loop:
   pop %r8
   pop %r9
   ret 
+
+movqtoxmmtest:
+  push %r9
+  push %r8
+  push %r10
+  mov $20, %r9
+  mov $123, %r10
+movqtoxmmtest_loop:
+  movq %r10, %xmm1
+  movq %xmm1, %r10
+  movq %r10, %xmm1
+  movq %xmm1, %r10 
+  movq %r10, %xmm1
+  movq %xmm1, %r10 
+  movq %r10, %xmm1
+  movq %xmm1, %r10 
+  movq %r10, %xmm1
+  movq %xmm1, %r10 
+  movq %r10, %xmm1
+  movq %xmm1, %r10
+  movq %r10, %xmm1
+  movq %xmm1, %r10 
+  movq %r10, %xmm1
+  movq %xmm1, %r10 
+  movq %r10, %xmm1
+  movq %xmm1, %r10 
+  movq %r10, %xmm1
+  movq %xmm1, %r10  
+  sub %r9, %rdi
+  jnz movqtoxmmtest_loop
+  movq %xmm1, %rax
+  pop %r10
+  pop %r8
+  pop %r9
+  ret 
diff --git a/LoadedMemoryLatency/LoadedMemoryLatency.c b/LoadedMemoryLatency/LoadedMemoryLatency.c
@@ -48,6 +48,14 @@ int main(int argc, char *argv[]) {
     int coreCount = get_nprocs();
     int latencyCore = 0;
     int *customCores = NULL;
+    if (argc == 1) {
+        fprintf(stderr, "Options:\n");
+        fprintf(stderr, "-bwthreads [int]: Number of bandwidth test threads\n");
+        fprintf(stderr, "-latencyaffinity [int]: Core to run latency test thread on\n");
+        fprintf(stderr, "-bwcores [comma separated list]: Cores to run bandwidth load on\n");
+        fprintf(stderr, "-scaleiterations [int]: Iterations scaling factor\n");
+        fprintf(stderr, "-throttle [int]: Reduce bandwidth load per bandwidth test thread\n");
+    }
     for (int argIdx = 1; argIdx < argc; argIdx++) {
         if (*(argv[argIdx]) == '-') {
             char *arg = argv[argIdx] + 1;

diff --git a/MemoryBandwidth/MemoryBandwidth.c b/MemoryBandwidth/MemoryBandwidth.c
@@ -34,8 +34,8 @@
 
 #pragma GCC diagnostic ignored "-Wattributes"
 
-int default_test_sizes[] = { 2, 4, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 512, 600, 768, 1024, 1536, 2048,
-                               3072, 4096, 5120, 6144, 8192, 10240, 12288, 16384, 24567, 32768, 65536, 98304,
+int default_test_sizes[] = { 2, 4, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 512, 600, 768, 1024, 1536, 2048, 2560,
+                               3072, 4096, 5120, 6144, 8192, 10240, 12288, 14336, 15360, 16384, 18432, 20480, 24567, 32768, 65536, 98304,
                                131072, 262144, 393216, 524288, 1048576, 1572864, 2097152, 3145728 };
 
 typedef struct BandwidthTestThreadData {

diff --git a/MemoryBandwidth/MemoryBandwidth_x86.s b/MemoryBandwidth/MemoryBandwidth_x86.s
@@ -797,7 +797,7 @@ repstosb_copy_pass_loop:
   rep stosb
   dec %r8
   jnz repstosb_copy_pass_loop
-  movss (%r12), %xmm0
+  movss (%r13), %xmm0
   pop %rdi
   pop %rsi
   pop %r12
@@ -823,7 +823,7 @@ repstosd_copy_pass_loop:
   rep stosl
   dec %r8
   jnz repstosd_copy_pass_loop
-  movss (%r12), %xmm0
+  movss (%r13), %xmm0
   pop %rdi
   pop %rsi
   pop %r12

diff --git a/MemoryLatency/MemoryLatency.c b/MemoryLatency/MemoryLatency.c
@@ -25,8 +25,8 @@
 #define PAGE_SIZE 4096
 #define CACHELINE_SIZE 64
 
-int default_test_sizes[] = { 2, 4, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 512, 600, 768, 1024, 1536, 2048,
-                               3072, 4096, 5120, 6144, 8192, 10240, 12288, 16384, 24567, 32768, 65536, 98304,
+int default_test_sizes[] = { 2, 4, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 512, 600, 768, 1024, 1536, 2048, 2304, 2560,
+                               3072, 4096, 5120, 6144, 8192, 10240, 12288, 13312, 14336, 15360, 16384, 18432, 20480, 24567, 32768, 65536, 98304,
                                131072, 262144, 393216, 524288, 1048576 }; //2097152 };
 
 #ifdef __x86_64