Lines Matching full:interval

150 monitoring attributes, ``sampling interval``, ``aggregation interval``,
151 ``update interval``, ``minimum number of regions``, and ``maximum number of
164 ``sampling interval`` and ``aggregation interval``.  In detail, DAMON checks
165 access to each page per ``sampling interval`` and aggregates the results.  In
167 ``aggregation interval`` passes, DAMON calls callback functions that previously
180         sleep(sampling interval)
195 interval``, DAMON randomly picks one page in each region, waits for one
196 ``sampling interval``, checks whether the page is accessed meanwhile, and
217 For each ``aggregation interval``, it compares the access frequencies
224 threshold becomes higher than possible maximum value (``aggregation interval``
225 divided by ``sampling interval``).   Then, after it reports and clears the
245 interval``, DAMON checks if the region's size and access frequency
261 interval (``update interval``).
274 In short, set ``aggregation interval`` to capture meaningful amount of accesses
277 default value of the interval, ``100ms``, turns out to be too short in many
278 cases.  Set ``sampling interval`` proportional to ``aggregation interval``.  By
281 ``Aggregation interval`` should be set as the time interval that the workload
282 can make an amount of accesses for the monitoring purpose, within the interval.
283 If the interval is too short, only small number of accesses are captured.  As a
291 capture per ``aggregation interval`` should carefully reconsidered.  Also, note
297 Hence the optimum value of ``aggregation interval`` depends on the access
298 intensiveness of the workload.  The user should tune the interval based on the
302 Note that the default value of the interval is 100 milliseconds, which is too
305 ``Sampling interval`` defines the resolution of each aggregation.  If it is set
309 useless in many use cases.  If ``sampling interval`` is too small, it will not
313 lowered.  It is recommended to be set proportional to ``aggregation interval``.
333 DAMON provides automatic tuning of the ``sampling interval`` and ``aggregation
334 interval`` based on the :ref:`the tuning guide idea
337 given time interval.  The target can be specified by the user as a ratio of
348 ``aggregation interval / sampling interval``.
351 and increases or decrease the ``sampleing interval`` and ``aggregation
352 interval`` in same ratio, if the observed access ratio is lower or higher than
356 The user can further set the minimum and maximum ``sampling interval`` that can
358 ``max_sample_us``).  Because the tuning mechanism changes ``sampling interval``
359 and ``aggregation interval`` in same ratio always, the minimum and maximum
360 ``aggregation interval`` after each of the tuning changes can automatically set
410 to the regions, for every user-specified time interval called