From d0412f3abae899b368f74e98b36cd26d26d9c540 Mon Sep 17 00:00:00 2001
From: Bimba Shrestha <bimbashrestha@fb.com>
Date: Fri, 3 Apr 2020 12:10:02 -0700
Subject: [PATCH] no percentage on readsize == 0

---
 programs/fileio.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/programs/fileio.c b/programs/fileio.c
index 6dd99f0f..f2ae1bd4 100644
--- a/programs/fileio.c
+++ b/programs/fileio.c
@@ -1387,11 +1387,18 @@ FIO_compressFilename_internal(FIO_prefs_t* const prefs,
 
     /* Status */
     DISPLAYLEVEL(2, "\r%79s\r", "");
-    DISPLAYLEVEL(2,"%-20s :%6.2f%%   (%6llu => %6llu bytes, %s) \n",
-        srcFileName,
-        (double)compressedfilesize / readsize * 100,
-        (unsigned long long)readsize, (unsigned long long) compressedfilesize,
-         dstFileName);
+    if (readsize == 0) {
+        DISPLAYLEVEL(2,"%-20s :  (%6llu => %6llu bytes, %s) \n",
+            srcFileName,
+            (unsigned long long)readsize, (unsigned long long) compressedfilesize,
+            dstFileName);
+    } else {
+        DISPLAYLEVEL(2,"%-20s :%6.2f%%   (%6llu => %6llu bytes, %s) \n",
+            srcFileName,
+            (double)compressedfilesize / readsize * 100,
+            (unsigned long long)readsize, (unsigned long long) compressedfilesize,
+            dstFileName);
+    }
 
     /* Elapsed Time and CPU Load */
     {   clock_t const cpuEnd = clock();