02-14-2012
Hi, have you tried the default IO scheduler? How are you copying your data? What is your IO size? How many IOPS are being performed? How is the disk space offered to the VM by ESXi?
Last edited by Scrutinizer; 02-14-2012 at 04:29 AM..
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LEARN ABOUT CENTOS
tapset::scheduler
tapset::scheduler(3stap) tapset::scheduler(3stap)
NAME
tapset::scheduler - systemtap scheduler tapset
DESCRIPTION
scheduler.cpu_off
Process is about to stop running on a cpu
See probe::scheduler.cpu_off(3stap)
for details.
scheduler.cpu_on
Process is beginning execution on a cpu
See probe::scheduler.cpu_on(3stap)
for details.
scheduler.tick
Schedulers internal tick, a processes timeslice accounting is updated
See probe::scheduler.tick(3stap)
for details.
scheduler.balance
A cpu attempting to find more work.
See probe::scheduler.balance(3stap)
for details.
scheduler.ctxswitch
A context switch is occuring.
See probe::scheduler.ctxswitch(3stap)
for details.
scheduler.kthread_stop
A thread created by kthread_create is being stopped
See probe::scheduler.kthread_stop(3stap)
for details.
scheduler.kthread_stop.return
A kthread is stopped and gets the return value
See probe::scheduler.kthread_stop.return(3stap)
for details.
scheduler.wait_task
Waiting on a task to unschedule (become inactive)
See probe::scheduler.wait_task(3stap)
for details.
scheduler.wakeup
Task is woken up
See probe::scheduler.wakeup(3stap)
for details.
scheduler.wakeup_new
Newly created task is woken up for the first time
See probe::scheduler.wakeup_new(3stap)
for details.
scheduler.migrate
Task migrating across cpus
See probe::scheduler.migrate(3stap)
for details.
scheduler.process_free
Scheduler freeing a data structure for a process
See probe::scheduler.process_free(3stap)
for details.
scheduler.process_exit
Process exiting
See probe::scheduler.process_exit(3stap)
for details.
scheduler.process_wait
Scheduler starting to wait on a process
See probe::scheduler.process_wait(3stap)
for details.
scheduler.process_fork
Process forked
See probe::scheduler.process_fork(3stap)
for details.
scheduler.signal_send
Sending a signal
See probe::scheduler.signal_send(3stap)
for details.
SEE ALSO
probe::scheduler.cpu_off(3stap), probe::scheduler.cpu_on(3stap), probe::scheduler.tick(3stap), probe::scheduler.balance(3stap),
probe::scheduler.ctxswitch(3stap), probe::scheduler.kthread_stop(3stap), probe::scheduler.kthread_stop.return(3stap),
probe::scheduler.wait_task(3stap), probe::scheduler.wakeup(3stap), probe::scheduler.wakeup_new(3stap), probe::scheduler.migrate(3stap),
probe::scheduler.process_free(3stap), probe::scheduler.process_exit(3stap), probe::scheduler.process_wait(3stap),
probe::scheduler.process_fork(3stap), probe::scheduler.signal_send(3stap), stap(1), stapprobes(3stap)
IBM
--- tapset::scheduler(3stap)