search for: gtime

[PATCH 2/4] like for cpustat, introduce the "gtime" (guest time of the task= ) and "cgtime" (guest time of the task children) fields for the tasks. Modify signal_struct and task_struct. Modify /proc/<pid>/stat to dis= play these new fields. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> -- = ------------- Laure...

[PATCH 2/4] like for cpustat, introduce the "gtime" (guest time of the task= ) and "cgtime" (guest time of the task children) fields for the tasks. Modify signal_struct and task_struct. Modify /proc/<pid>/stat to dis= play these new fields. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> -- = ------------- Laure...

...3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --- kvm.orig/fs/proc/array.c 2007-08-16 15:23:52.000000000 +0200 +++ kvm/fs/proc/array.c 2007-08-16 15:36:54.000000000 +0200 @@ -354,6 +354,13 @@ return stime; } = +static clock_t task_gtime(struct task_struct *p) +{ + clock_t gtime =3D cputime_to_clock_t(p->gtime); + + return gtime; +} + static int do_task_stat(struct task_struct *task, char *buffer, int whole) { unsigned long vsize, eip, esp, wchan =3D ~0UL; @@ -368,8 +375,8 @@ unsigned long long start_time; unsigned long...

...3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --- kvm.orig/fs/proc/array.c 2007-08-16 15:23:52.000000000 +0200 +++ kvm/fs/proc/array.c 2007-08-16 15:36:54.000000000 +0200 @@ -354,6 +354,13 @@ return stime; } = +static clock_t task_gtime(struct task_struct *p) +{ + clock_t gtime =3D cputime_to_clock_t(p->gtime); + + return gtime; +} + static int do_task_stat(struct task_struct *task, char *buffer, int whole) { unsigned long vsize, eip, esp, wchan =3D ~0UL; @@ -368,8 +375,8 @@ unsigned long long start_time; unsigned long...

I am teaching a DTrace class and a student noticed that 2 iosnoop scripts run in two different windows were producing different results. I was not able to answer why this is. Can anyone explain this. Here are the reults from the two windows: # io.d ... sched 0 <none> 1024 dad1 W 0.156 bash 1998

.../4] as recent CPUs introduce a third running state, after "user" and "system", we need a new field, "guest", in cpustat to store the time used by the CPU to run virtual CPU. Modify /proc/stat to display this new field. [PATCH 2/4] like for cpustat, introduce the "gtime" (guest time of the task) and "cgtime" (guest time of the task children) fields for the tasks. Modify signal_struct and task_struct. Modify /proc/<pid>/stat to display these new fields. [PATCH 3/4] modify account_system_time() to add cputime to cpustat->guest if we are runn...

.../4] as recent CPUs introduce a third running state, after "user" and "system", we need a new field, "guest", in cpustat to store the time used by the CPU to run virtual CPU. Modify /proc/stat to display this new field. [PATCH 2/4] like for cpustat, introduce the "gtime" (guest time of the task) and "cgtime" (guest time of the task children) fields for the tasks. Modify signal_struct and task_struct. Modify /proc/<pid>/stat to display these new fields. [PATCH 3/4] modify account_system_time() to add cputime to cpustat->guest if we are runn...

..."/vol/recordings/"; $finame = $ti."_".$extn; $fname = $dir.$finame; $finame = $finame.".gsm"; # populate the DB with the required information # Agent, Filename, date, time # Get the Date and Time $gdate = $dbh->selectrow_array ("SELECT current_date()"); $gtime = $dbh->selectrow_array ("SELECT current_time()"); $date_time = "$gdate $gtime"; # Cross reference the Agent Phone with extension $phone = $dbh1->selectrow_array ("SELECT phone from map where extn = '$extn'"); $agent = $dbh1->selectrow_array ("SE...

...it is executed in the kernel. We duplicate VCPU time between guest and user to allow an unmodified "top(1)" to display correct value. A modified "top(1)" = is able to display good cpu user time and cpu guest time by subtracting cpu gu= est time from cpu user time. Update "gtime" in task_struct accordingly. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> -- = ------------- Laurent.Vivier@bull.net -------------- "Software is hard" - Donald Knuth -------------- next part -------------- Index: kvm/include/linux/sched.h =3D=3D=3D=3D=3D...

...it is executed in the kernel. We duplicate VCPU time between guest and user to allow an unmodified "top(1)" to display correct value. A modified "top(1)" = is able to display good cpu user time and cpu guest time by subtracting cpu gu= est time from cpu user time. Update "gtime" in task_struct accordingly. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> -- = ------------- Laurent.Vivier@bull.net -------------- "Software is hard" - Donald Knuth -------------- next part -------------- Index: kvm/include/linux/sched.h =3D=3D=3D=3D=3D...

...e lock is being held). But I see something unexpected. I see * Voluntary context switches occur almost every time due to doorfs() system call. They do occur for a few times due to lwp_park() and very few times due to yield(). * Involuntary happens anytime. (lwp_park(), read(), fstat(), putmsg(), gtime() and sometime without any system call!!) Does anyone have any idea, what could be the reason for this unexpected behavior? Thanks, Neelam -- This message posted from opensolaris.org

...ct vcpu *v, struct hvmcpu_context *ctxt); + /* * Examine specifics of the guest state: * 1) determine whether paging is enabled, @@ -157,6 +164,35 @@ hvm_load_cpu_guest_regs(struct vcpu *v, hvm_funcs.load_cpu_guest_regs(v, r); } +void hvm_set_guest_time(struct vcpu *v, u64 gtime); +u64 hvm_get_guest_time(struct vcpu *v); + +static inline void +hvm_save_cpu_context( + struct vcpu *v, struct hvmcpu_context *ctxt) +{ + hvm_funcs.save_cpu_ctxt(v, ctxt); + + /* save guest time */ + ctxt->gtime = hvm_get_guest_time(v); + + /* set valid flag to recover whole...

The value of ACPI PM-Timer may be broken on save unless the timer mode is delay_for_missed_ticks. With other timer modes, vcpu->arch.hvm_vcpu.guest_time is always zero and the adjustment from its value is wrong. This patch fixes the saved value of ACPI PM-Timer: - don''t adjust the PM-Timer if vcpu->arch.hvm_vcpu.guest_time is zero. - consolidate calculations of PM-Timer to one