[Xen-devel] [patch] xenmon.py: fix sleep duration, reporting of time intervals

["Diwaker Gupta" <diwaker.lists@xxxxxxxxx>]

In log mode (-n option), the timestamp  that Xenmon outputs is in
increments of the specifid interval (default 1s), not the actual time
passed. This patch fixes this.

# HG changeset patch
# Node ID 7dd31dbf16e75f0f70e0f9c44b2bb2b5fc6eecf1
# Parent  90c71ea18b50f4a7ee1c9fe03f9563a05befb8a6
Fix reporting of time intervals in the log mode of XenMon.
Fix duration to sleep between iterations (earlier hardcoded to 1sec)
Signed-off-by: Diwaker Gupta <dgupta@xxxxxxxxxxx>

diff -r 90c71ea18b50 -r 7dd31dbf16e7 tools/xenmon/xenmon.py
--- a/tools/xenmon/xenmon.py    Mon Mar  6 19:26:30 2006 +0100
+++ b/tools/xenmon/xenmon.py    Mon Mar  6 13:02:50 2006 -0800
@@ -502,6 +502,7 @@ def writelog():
     shm = mmap.mmap(shmf.fileno(), QOS_DATA_SIZE)

     interval = 0
+    curr = last = time.time()
     outfiles = {}
     for dom in range(0, NDOMAINS):
         outfiles[dom] = Delayed("%s-dom%d.log" % (options.prefix, dom), 'w')
@@ -561,9 +562,10 @@ def writelog():
                                      h1[dom][4],
                                      h1[dom][5][0], h1[dom][5][1]))
                     outfiles[dom].flush()
-
-        interval += options.interval
-        time.sleep(1)
+            curr = time.time()
+            interval += (curr - last) * 1000
+            last = curr
+        time.sleep(options.interval / 1000.0)

     for dom in range(0, NDOMAINS):
         outfiles[dom].close()

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