diff --git a/include/sigar.h b/include/sigar.h
index 00aa508f..d72b7715 100644
--- a/include/sigar.h
+++ b/include/sigar.h
@@ -445,6 +445,8 @@ typedef struct {
         disk_write_bytes,
         disk_read_bytes,
         disk_queue,
+        disk_rtime,
+        disk_wtime,
         disk_time;
     double use_percent;
 } sigar_file_system_usage_t;
diff --git a/src/os/linux/linux_sigar.c b/src/os/linux/linux_sigar.c
index fb5c819b..92ddeb5c 100644
--- a/src/os/linux/linux_sigar.c
+++ b/src/os/linux/linux_sigar.c
@@ -1379,6 +1379,9 @@ static int get_iostat_proc_dstat(sigar_t *sigar,
                          &aveq);   /* 11 # of millis spent doing I/Os (weighted) */
 
             if (num == 11) {
+                fsusage->disk_rtime = ruse;
+                fsusage->disk_wtime = wuse;
+                fsusage->disk_time = use;
                 fsusage->disk_queue  = aveq / 1000;
             }
             else if (num == 4) {
@@ -1400,8 +1403,6 @@ static int get_iostat_proc_dstat(sigar_t *sigar,
             fsusage->disk_read_bytes  *= 512;
             fsusage->disk_write_bytes *= 512;
 
-            fsusage->disk_time = use;
-
             fclose(fp);
             return status;
         }
@@ -1454,12 +1455,11 @@ static int get_iostat_procp(sigar_t *sigar,
             fsusage->disk_reads = sigar_strtoull(ptr); /* rio */
             ptr = sigar_skip_token(ptr);  /* rmerge */ 
             fsusage->disk_read_bytes  = sigar_strtoull(ptr); /* rsect */
-            ptr = sigar_skip_token(ptr);  /* ruse */ 
-
+            fsusage->disk_rtime = sigar_strtoull(ptr); /* ruse */
             ptr = sigar_skip_token(ptr);  /* wmerge */ 
             fsusage->disk_write_bytes = sigar_strtoull(ptr); /* wsect */
             fsusage->disk_writes = sigar_strtoull(ptr); /* wio */
-            ptr = sigar_skip_token(ptr);  /* wuse */ 
+            fsusage->disk_wtime = sigar_strtoull(ptr); /* wuse */
             ptr = sigar_skip_token(ptr); /* running */
             fsusage->disk_time = sigar_strtoull(ptr); /* use */
             fsusage->disk_queue  = sigar_strtoull(ptr); /* aveq */