Displaying 4 results from an estimated 4 matches for "cic_seeky".
2008 Nov 14
0
No subject
...), BFQ doesn't. As a side effect BFQ does not
always dispatch enough requests to correctly detect tagging.
At the first seek you cannot tell if the process is going to bee seeky
or not, and we have chosen to consider it sequential because it improved
fairness in some sequential workloads (the CIC_SEEKY heuristic is used
also to determine the idle_window length in [bc]fq_arm_slice_timer()).
Anyway, we're dealing with heuristics, and they tend to favor some
workload over other ones. If recovering this thoughput loss is more
important than a transient unfairness due to short idling windows ass...
2008 Nov 14
0
No subject
...), BFQ doesn't. As a side effect BFQ does not
always dispatch enough requests to correctly detect tagging.
At the first seek you cannot tell if the process is going to bee seeky
or not, and we have chosen to consider it sequential because it improved
fairness in some sequential workloads (the CIC_SEEKY heuristic is used
also to determine the idle_window length in [bc]fq_arm_slice_timer()).
Anyway, we're dealing with heuristics, and they tend to favor some
workload over other ones. If recovering this thoughput loss is more
important than a transient unfairness due to short idling windows ass...
2008 Nov 12
15
[PATCH][RFC][12+2][v3] A expanded CFQ scheduler for cgroups
This patchset expands traditional CFQ scheduler in order to support cgroups,
and improves old version.
Improvements are as following.
* Modularizing our new CFQ scheduler.
The expanded CFQ scheduler is registered/unregistered as new I/O
elevator scheduler called "cfq-cgroups". By this, the traditional CFQ
scheduler, which does not handle cgroups, and our new CFQ
2008 Nov 12
15
[PATCH][RFC][12+2][v3] A expanded CFQ scheduler for cgroups
This patchset expands traditional CFQ scheduler in order to support cgroups,
and improves old version.
Improvements are as following.
* Modularizing our new CFQ scheduler.
The expanded CFQ scheduler is registered/unregistered as new I/O
elevator scheduler called "cfq-cgroups". By this, the traditional CFQ
scheduler, which does not handle cgroups, and our new CFQ