From e3622d446e5ae4d103fd15753c93472d8c9ff1ff Mon Sep 17 00:00:00 2001
From: winlin <winlin@vip.126.com>
Date: Fri, 22 May 2015 17:08:26 +0800
Subject: [PATCH] fix #397, the USER_HZ maybe not 100. 1.0.32

---
 README.md                         |  1 +
 trunk/src/app/srs_app_utility.cpp | 16 +++++++---------
 trunk/src/core/srs_core.hpp       |  2 +-
 3 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/README.md b/README.md
index c70a13afed..f0f27482ee 100755
--- a/README.md
+++ b/README.md
@@ -387,6 +387,7 @@ Supported operating systems and hardware:
 
 ## History
 
+* v1.0, 2015-05-22, fix [#397](https://github.com/simple-rtmp-server/srs/issues/397) the USER_HZ maybe not 100. 1.0.32
 * v1.0, 2015-03-26, fix hls aac adts bug, in aac mux. 1.0.31.
 * <strong>v1.0, 2015-03-19, [1.0r3 release(1.0.30)](https://github.com/simple-rtmp-server/srs/releases/tag/1.0r3) released. 59511 lines.</strong>
 * v1.0, 2015-03-17, remove the osx for 1.0.30.
diff --git a/trunk/src/app/srs_app_utility.cpp b/trunk/src/app/srs_app_utility.cpp
index e164b2d003..42fdfcc4f7 100644
--- a/trunk/src/app/srs_app_utility.cpp
+++ b/trunk/src/app/srs_app_utility.cpp
@@ -292,15 +292,13 @@ bool get_proc_self_stat(SrsProcSelfStat& r)
 
 void srs_update_proc_stat()
 {
-    // always assert the USER_HZ is 1/100ths
     // @see: http://stackoverflow.com/questions/7298646/calculating-user-nice-sys-idle-iowait-irq-and-sirq-from-proc-stat/7298711
-    static bool user_hz_assert = false;
-    if (!user_hz_assert) {
-        user_hz_assert = true;
-        
-        int USER_HZ = sysconf(_SC_CLK_TCK);
-        srs_trace("USER_HZ=%d", USER_HZ);
-        srs_assert(USER_HZ == 100);
+    // @see https://github.com/simple-rtmp-server/srs/issues/397
+    static int user_hz = 0;
+    if (user_hz <= 0) {
+        user_hz = sysconf(_SC_CLK_TCK);
+        srs_trace("USER_HZ=%d", user_hz);
+        srs_assert(user_hz > 0);
     }
     
     // system cpu stat
@@ -345,7 +343,7 @@ void srs_update_proc_stat()
         int64_t total = r.sample_time - o.sample_time;
         int64_t usage = (r.utime + r.stime) - (o.utime + o.stime);
         if (total > 0) {
-            r.percent = (float)(usage * 1000 / (double)total / 100);
+            r.percent = (float)(usage * 1000 / (double)total / user_hz);
         }
         
         // upate cache.
diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index 2a42f58f77..3e28ea7b62 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR       1
 #define VERSION_MINOR       0
-#define VERSION_REVISION    31 
+#define VERSION_REVISION    32
 
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"