else
msb = (sizeof(val)*8) - __builtin_clz(val) - 1;
- /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
- * all bits of the sample as index */
+ /*
+ * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
+ * all bits of the sample as index
+ */
if (msb <= FIO_IO_U_PLAT_BITS)
return val;
/* Compute the number of buckets before the group */
base = (error_bits + 1) << FIO_IO_U_PLAT_BITS;
- /* Discard the error bits and apply the mask to find the
- * index for the buckets in the group */
+ /*
+ * Discard the error bits and apply the mask to find the
+ * index for the buckets in the group
+ */
offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits);
/* Make sure the index does not exceed (array size - 1) */
{
unsigned long sum = 0;
unsigned int len, i, j = 0;
+ const double *plist;
+ int is_last = 0;
static const double def_list[FIO_IO_U_LIST_MAX_LEN] = {
1.0, 5.0, 10.0, 20.0, 30.0,
40.0, 50.0, 60.0, 70.0, 80.0,
90.0, 95.0, 99.0, 99.5, 99.9};
- const double* plist = user_list? user_list: def_list;
- for (len = 0; len <FIO_IO_U_LIST_MAX_LEN && plist[len] != 0; len++) {}
+ plist = user_list;
+ if (!plist)
+ plist = def_list;
+
+ for (len = 0; len <FIO_IO_U_LIST_MAX_LEN && plist[len] != 0; len++)
+ ;
- /* Sort the user-specified list. Note that this does not work
- for NaN values */
+ /*
+ * Sort the user-specified list. Note that this does not work
+ * for NaN values
+ */
if (user_list && len > 1)
qsort((void*)user_list, len, sizeof(user_list[0]), double_cmp);
- int is_last = 0;
log_info(" clat percentiles (usec) :");
- for (i = 0; i <FIO_IO_U_PLAT_NR && !is_last; i++) {
+ for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
sum += io_u_plat[i];
- while (sum >= (plist[j]/100 * nr)) {
+ while (sum >= (plist[j] / 100 * nr)) {
assert(plist[j] <= 100.0);
- if (j!=0 && (j%4) == 0) /* for formatting */
+ /* for formatting */
+ if (j != 0 && (j % 4) == 0)
log_info(" ");
/* end of the list */
log_info(" %2.2fth=%u%c", plist[j], plat_idx_to_val(i),
(is_last? '\n' : ','));
- if (is_last) break;
+ if (is_last)
+ break;
- if (j%4 == 3) /* for formatting */
+ if (j % 4 == 3) /* for formatting */
log_info("\n");
j++;
}