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tools/kvm_stat: fix event counts display for interrupted intervals

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When an update interval is interrupted via key press (e.g. space), the
'Current' column value is calculated using the full interval length
instead of the elapsed time, which leads to lower than actual numbers.
Furthermore, the value should be rounded, not truncated.
This is fixed by using the actual elapsed time for the calculation.

Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Stefan Raspl 2017-06-07 21:08:26 +02:00 committed by Paolo Bonzini
parent 773bffeeb2
commit 124c2fc9fd
1 changed files with 5 additions and 2 deletions
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7
tools/kvm/kvm_stat/kvm_stat
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@ -1009,7 +1009,8 @@ class Tui(object):
self.screen.addstr(row, col, '%7.1f' % (values[0] * 100 / total,))
col += 7
if values[1] is not None:
self.screen.addstr(row, col, '%8d' % (values[1] / sleeptime,))
self.screen.addstr(row, col, '%8d' %
round(values[1] / sleeptime))
row += 1
self.screen.refresh()
@ -1130,9 +1131,11 @@ class Tui(object):
"""Refreshes the screen and processes user input."""
sleeptime = DELAY_INITIAL
self.refresh_header()
start = 0.0 # result based on init value never appears on screen
while True:
self.refresh_body(sleeptime)
self.refresh_body(time.time() - start)
curses.halfdelay(int(sleeptime * 10))
start = time.time()
sleeptime = DELAY_REGULAR
try:
char = self.screen.getkey()