diff --git a/src/cmd/.gitignore b/src/cmd/.gitignore
index 32fa388..0253bbf 100644
--- a/src/cmd/.gitignore
+++ b/src/cmd/.gitignore
@@ -11,6 +11,7 @@ comm
 cp
 dd
 df
+diskspeed
 du
 echo
 ed
diff --git a/src/cmd/Makefile b/src/cmd/Makefile
index e61f57c..ccb63fe 100644
--- a/src/cmd/Makefile
+++ b/src/cmd/Makefile
@@ -33,11 +33,11 @@ SCRIPT		= false nohup true #lorder mkdep
 # C programs that live in the current directory and do not need
 # explicit make lines.
 #
-STD		= basename cal cat cb chgrp chmod cmp col comm cp dd du \
-		  echo ed fgrep file grep head hostid join kill last ln \
-                  mesg mkdir mv nice od pagesize pr printenv pwd rev rm rmail rmdir \
-                  size sleep sort split sum sync tail tar tee time touch tr \
-                  tsort tty uniq w wc whereis who diskspeed
+STD		= basename cal cat cb chgrp chmod cmp col comm cp dd \
+                  diskspeed du echo ed fgrep file grep head hostid join \
+                  kill last ln mesg mkdir mv nice od pagesize pr printenv \
+                  pwd rev rm rmail rmdir size sleep sort split sum sync \
+                  tail tar tee time touch tr tsort tty uniq w wc whereis who
 
 # C programs that live in the current directory and need explicit make lines.
 #
diff --git a/src/cmd/diskspeed.c b/src/cmd/diskspeed.c
index d02d0a6..7730f22 100644
--- a/src/cmd/diskspeed.c
+++ b/src/cmd/diskspeed.c
@@ -21,7 +21,6 @@
 #include <stdlib.h>
 #include <fcntl.h>
 #include <unistd.h>
-#include <stdint.h>
 #include <sys/time.h>
 
 #define MAX_BLOCK_SZ    64      /* kbytes */
@@ -153,6 +152,9 @@ int main(int argc, char **argv)
      * Write data to file.
      */
     sync();
+    usleep(200000);
+    sync();
+    usleep(200000);
     t0 = current_msec();
     nbytes = blocksize_kbytes * 1024;
     for (n=0; n<datasize_mbytes*1024/blocksize_kbytes; n++) {
@@ -170,6 +172,9 @@ int main(int argc, char **argv)
      * Read data from file.
      */
     sync();
+    usleep(200000);
+    sync();
+    usleep(200000);
     lseek(fd, 0, SEEK_SET);
     t0 = current_msec();
     for (n=0; n<datasize_mbytes*1024/blocksize_kbytes; n++) {