Add iops rate to ETA display

[fio.git] / fio.h

diff --git a/fio.h b/fio.h
index 0a7281925d1b3e5666a7d65da2c8fe24f1d91860..771df35412ea787382b5963086fc9d6466ddf56d 100644 (file)
--- a/fio.h
+++ b/fio.h
@@ -560,4 +560,47 @@ static inline int fio_fill_issue_time(struct thread_data *td)
        return 0;
 }
 
+/*
+ * Cheesy number->string conversion, complete with carry rounding error.
+ */
+static inline char *num2str(unsigned long num, int maxlen, int base, int pow2)
+{
+       char postfix[] = { ' ', 'K', 'M', 'G', 'P', 'E' };
+       unsigned int thousand;
+       char *buf;
+       int i;
+
+       if (pow2)
+               thousand = 1024;
+       else
+               thousand = 1000;
+
+       buf = malloc(128);
+
+       for (i = 0; base > 1; i++)
+               base /= thousand;
+
+       do {
+               int len, carry = 0;
+
+               len = sprintf(buf, "%'lu", num);
+               if (len <= maxlen) {
+                       if (i >= 1) {
+                               buf[len] = postfix[i];
+                               buf[len + 1] = '\0';
+                       }
+                       return buf;
+               }
+
+               if ((num % thousand) >= (thousand / 2))
+                       carry = 1;
+
+               num /= thousand;
+               num += carry;
+               i++;
+       } while (i <= 5);
+
+       return buf;
+}
+
 #endif