diff options
Diffstat (limited to 'libutil/op_cpufreq.c')
-rw-r--r-- | libutil/op_cpufreq.c | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/libutil/op_cpufreq.c b/libutil/op_cpufreq.c deleted file mode 100644 index 78a6333..0000000 --- a/libutil/op_cpufreq.c +++ /dev/null @@ -1,64 +0,0 @@ -/** - * @file op_cpufreq.c - * get cpu frequency definition - * - * @remark Copyright 2003 OProfile authors - * @remark Read the file COPYING - * - * @author John Levon - * @author Philippe Elie - */ - -#include <stdio.h> -#include <stdlib.h> - -#include "op_fileio.h" - -double op_cpu_frequency(void) -{ - double fval = 0.0; - unsigned long uval; - char * line = NULL; - - FILE * fp = op_try_open_file("/proc/cpuinfo", "r"); - if (!fp) - return 0.0; - - while (1) { - line = op_get_line(fp); - - if (!line) - break; - - if (line[0] == '\0') { - free(line); - continue; - } - - /* x86/parisc/ia64/x86_64 */ - if (sscanf(line, "cpu MHz : %lf", &fval) == 1) - break; - /* ppc/ppc64 */ - if (sscanf(line, "clock : %lfMHz", &fval) == 1) - break; - /* alpha */ - if (sscanf(line, "cycle frequency [Hz] : %lu", &uval) == 1) { - fval = uval / 1E6; - break; - } - /* sparc64 if CONFIG_SMP only */ - if (sscanf(line, "Cpu0ClkTck : %lx", &uval) == 1) { - fval = uval / 1E6; - break; - } - /* s390 doesn't provide cpu freq, checked up to 2.6-test4 */ - - free(line); - } - - if (line) - free(line); - op_close_file(fp); - - return fval; -} |