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提交 58912c4c 创建 作者: Silas Boyd-Wickizer's avatar Silas Boyd-Wickizer
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bench tweaks

上级 a05638cb
隐藏空白字符变更
内嵌 并排
正在显示 包含 14 行增加 和 10 行删除
bin/bench.cc
浏览文件 @ 58912c4c
......@@ -67,6 +67,17 @@ struct LoopsBench : public Bench
LoopsBench(const char *cmd, int nloops, int cpuinc) :
Bench(), cmd_(cmd), nloops_(nloops), cpuinc_(cpuinc) {}
char* runone(int ncore, const char** argv, char *res, int n) {
char cores[16];
snprintf(cores, sizeof(cores), "%u", ncore);
argv[1] = cores;
u64 r = time_this(argv);
// r in usecs
r = (r*(1000*1000)) / cpuhz();
snprintf(res, n, "%u %lu %lu\n", ncore, r, nloops_);
return res + strlen(res);
}
virtual void run(void) {
char nloopstr[16];
snprintf(nloopstr, sizeof(nloopstr), "%u", nloops_);
......@@ -78,16 +89,9 @@ struct LoopsBench : public Bench
snprintf(res, q-res, "#cores usecs loops/core\n");
res += strlen(res);
for (int i = cpuinc_; i <= NCPU; i += cpuinc_) {
char cores[16];
snprintf(cores, sizeof(cores), "%u", i);
argv[1] = cores;
u64 r = time_this(argv);
// r in usecs
r = (r*(1000*1000)) / cpuhz();
snprintf(res, q-res, "%u %lu %lu\n", i, r, nloops_);
res += strlen(res);
}
res = runone(1, argv, res, q-res);
for (int i = cpuinc_; i <= NCPU; i += cpuinc_)
res = runone(i, argv, res, q-res);
}
virtual char* result(void) {
......
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