[Python-checkins] peps: PEP 418: Add benchmark results of Mac OS 10.6

[victor.stinner]

http://hg.python.org/peps/rev/bbc58fd41f78
changeset:   4259:bbc58fd41f78
user:        Victor Stinner <victor.stinner at gmail.com>
date:        Tue Apr 17 23:59:33 2012 +0200
summary:
  PEP 418: Add benchmark results of Mac OS 10.6

Fix also clock_precision.py: catch clock_gettime() errors

files:
  pep-0418.txt                |  12 +++++++++---
  pep-0418/clock_precision.py |   5 +++++
  2 files changed, 14 insertions(+), 3 deletions(-)


diff --git a/pep-0418.txt b/pep-0418.txt
--- a/pep-0418.txt
+++ b/pep-0418.txt
@@ -902,11 +902,12 @@
 =========================  ================  =========  ===================
 Name                       Operating system  Precision  Precision in Python
 =========================  ================  =========  ===================
-CLOCK_HIGHRES              SunOS 5.11             2 ns                 2 µs
+CLOCK_HIGHRES              SunOS 5.11             2 ns               253 ns
 CLOCK_MONOTONIC            Linux 3.2              1 ns                 2 µs
 CLOCK_MONOTONIC            SunOS 5.11             2 ns                 3 µs
 CLOCK_MONOTONIC_RAW        Linux 3.2              1 ns                 3 µs
 CLOCK_BOOTTIME             Linux 3.3              1 ns                 3 µs
+mach_absolute_time()       Mac OS 10.6            1 ns                 3 µs
 CLOCK_MONOTONIC            FreeBSD 8.2           11 ns                 7 µs
 CLOCK_MONOTONIC            OpenBSD 5.0           10 ms                 7 µs
 QueryPerformanceCounter    Windows Seven         10 ns                 9 µs
@@ -1151,8 +1152,9 @@
 =========================  ================  =========  ===================
 Name                       Operating system  Precision  Precision in Python
 =========================  ================  =========  ===================
-CLOCK_REALTIME             SunOS 5.11            10 ms                 2 µs
+CLOCK_REALTIME             SunOS 5.11            10 ms               238 ns
 CLOCK_REALTIME             Linux 3.2              1 ns                 2 µs
+gettimeofday()             Mac OS 10.6            1 µs                 4 µs
 CLOCK_REALTIME             FreeBSD 8.2           11 ns                 7 µs
 CLOCK_REALTIME             OpenBSD 5.0           10 ms                10 µs
 CLOCK_REALTIME_COARSE      Linux 3.3              1 ms                 1 ms
@@ -1212,9 +1214,12 @@
 =========================  ================  =========  ===================
 Name                       Operating system  Precision  Precision in Python
 =========================  ================  =========  ===================
+CLOCK_PROF                 FreeBSD 8.2           10 ms                 1 µs
 getrusage(RUSAGE_SELF)     FreeBSD 8.2              \-                 1 µs
 CLOCK_PROCESS_CPUTIME_ID   Linux 3.2              1 ns                 3 µs
-getrusage(RUSAGE_SELF)     SunOS 5.11               \-                 3 µs
+getrusage(RUSAGE_SELF)     SunOS 5.11               \-                 1 µs
+getrusage(RUSAGE_SELF)     Mac OS 10.6              \-                 5 µs
+clock()                    Mac OS 10.6            1 µs                 5 µs
 getrusage(RUSAGE_SELF)     Linux 3.3                \-                 1 ms
 getrusage(RUSAGE_SELF)     OpenBSD 5.0              \-                 8 ms
 clock()                    FreeBSD 8.2            8 ms                 8 ms
@@ -1222,6 +1227,7 @@
 times()                    Linux 3.0             10 ms                10 ms
 clock()                    OpenBSD 5.0           10 ms                10 ms
 times()                    OpenBSD 5.0           10 ms                10 ms
+times()                    Mac OS 10.6           10 ms                10 ms
 GetProcessTimes()          Windows Seven         16 ms                16 ms
 clock()                    SunOS 5.11             1 µs                10 ms
 =========================  ================  =========  ===================
diff --git a/pep-0418/clock_precision.py b/pep-0418/clock_precision.py
--- a/pep-0418/clock_precision.py
+++ b/pep-0418/clock_precision.py
@@ -51,6 +51,11 @@
     name = 'clock_gettime(%s)' % clock_id_text
     def gettime():
         return time.clock_gettime(clock_id)
+    try:
+        gettime()
+    except OSError as err:
+        print("%s failed: %s" % (name, err))
+        continue
     test_clock(name, gettime)
     precision = time.clock_getres(clock_id)
     print("- announced precision: %s" % format_duration(precision))

-- 
Repository URL: http://hg.python.org/peps