Changeset fd3a631f in mainline

Timestamp:

2010-06-12T00:01:55Z (14 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

1d6c497

Parents:

b584cd4

Message:

Fix weird load average values.
The fix has been addopted from lp:~ersin/helenos/measure2 (changeset 405, stanislav.kozina@…).
However, the usage of nrdy_max (as implemented in the above changeset) does not seem to provide stable and reasonable values, thus the original current value of nrdy is still being used.

File:

• kernel/generic/src/sysinfo/stats.c (modified) (2 diffs)

kernel/generic/src/sysinfo/stats.c

@@ -53 +53 @@
 #define LOAD_FIXED_SHIFT  11
 
+/** Uspace load fixed-point precision */
+#define LOAD_USPACE_SHIFT  6
+
+/** Kernel load shift */
+#define LOAD_KERNEL_SHIFT  (LOAD_FIXED_SHIFT - LOAD_USPACE_SHIFT)
+
 /** 1.0 as fixed-point for load */
 #define LOAD_FIXED_1  (1 << LOAD_FIXED_SHIFT)
@@ -713 +719 @@
         unsigned int i;
         for (i = 0; i < LOAD_STEPS; i++)
-                stats_load[i] = avenrdy[i] << LOAD_FIXED_SHIFT;
+                stats_load[i] = avenrdy[i] << LOAD_KERNEL_SHIFT;
         
         mutex_unlock(&load_lock);