diff options
Diffstat (limited to 'kmod/cachepc.h')
| -rwxr-xr-x | kmod/cachepc.h | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/kmod/cachepc.h b/kmod/cachepc.h index 0e02678..13d38ca 100755 --- a/kmod/cachepc.h +++ b/kmod/cachepc.h @@ -49,21 +49,21 @@ extern cacheline *cachepc_ds; cacheline * cachepc_prime(cacheline *head) { - cacheline *curr_cl; + cacheline *curr_cl, *prev_cl; cachepc_mfence(); cachepc_cpuid(); curr_cl = head; do { + prev_cl = curr_cl; curr_cl = curr_cl->next; } while (curr_cl != head); - curr_cl = curr_cl->prev; cachepc_mfence(); cachepc_cpuid(); - return curr_cl; + return prev_cl; } /* @@ -114,9 +114,6 @@ cachepc_probe(cacheline *start_cl) do { pre = cachepc_read_pmc(0); - cachepc_mfence(); - //cachepc_cpuid(); - asm volatile( "mov 8(%[curr_cl]), %%rax \n\t" // +8 "mov 8(%%rax), %%rcx \n\t" // +16 @@ -132,24 +129,20 @@ cachepc_probe(cacheline *start_cl) : "rax", "rcx" ); - cachepc_mfence(); - //cachepc_cpuid(); - post = cachepc_read_pmc(0); - cachepc_mfence(); - //cachepc_cpuid(); - /* works across size boundary */ curr_cl->count = post - pre; curr_cl = next_cl; } while (__builtin_expect(curr_cl != start_cl, 1)); + next_cl = curr_cl->next; + cachepc_mfence(); cachepc_cpuid(); - return curr_cl->next; + return next_cl; } void |