STRUCT TASK_CPUTIME(9) Driver Basics STRUCT TASK_CPUTIME(9)NAME
struct_task_cputime - collected CPU time counts
SYNOPSIS
struct task_cputime {
cputime_t utime;
cputime_t stime;
unsigned long long sum_exec_runtime;
};
MEMBERS
utime
time spent in user mode, in cputime_t units
stime
time spent in kernel mode, in cputime_t units
sum_exec_runtime
total time spent on the CPU, in nanoseconds
DESCRIPTION
This is an extension of struct cputime that includes the total runtime spent by the task from the scheduler point of view.
As a result, this structure groups together three kinds of CPU time that are tracked for threads and thread groups. Most things considering
CPU time want to group these counts together and treat all three of them in parallel.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 STRUCT TASK_CPUTIME(9)
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rstat(3N)rstat(3N)NAME
rstat(), havedisk() - get performance data from remote kernel
SYNOPSIS DESCRIPTION
returns if host has a disk, if it does not, and -1 if this cannot be determined. The host string is either the official name of the host
or an alias for it. See hosts(4) for more information regarding host names.
fills in the statstime structure for host, and returns if it was successful. The relevant structures are:
struct stats { /* RSTATVERS_ORIG */
int cp_time[4]; /* the time spent in each CPU state */
int dk_xfer[4]; /* total number of disk transfers
on each of the disk interfaces */
unsigned v_pgpgin; /* total VM pages paged in */
unsigned v_pgpgout; /* total VM pages paged out */
unsigned v_pswpin; /* total VM pages paged swapped in */
unsigned v_pswpout; /* total VM pages paged swapped out */
unsigned v_intr; /* total interrupts */
int if_ipackets; /* inbound packets on all interfaces */
int if_ierrors; /* inbound errors on all interfaces */
int if_opackets; /* outbound packets on all interfaces */
int if_oerrors; /* outbound errors on all interfaces */
int if_collisions; /* collisions seen on all interfaces */
};
struct statsswtch { /* RSTATVERS_SWTCH */
int cp_time[4]; /* the time spent in each CPU state */
int dk_xfer[4]; /* total number of disk transfers
on each of the disk interfaces */
unsigned v_pgpgin; /* total VM pages paged in */
unsigned v_pgpgout; /* total VM pages paged out */
unsigned v_pswpin; /* total VM pages paged swapped in */
unsigned v_pswpout; /* total VM pages paged swapped out */
unsigned v_intr; /* total interrupts */
int if_ipackets; /* inbound packets on all interfaces */
int if_ierrors; /* inbound errors on all interfaces */
int if_opackets; /* outbound packets on all interfaces */
int if_oerrors; /* outbound errors on all interfaces */
int if_collisions; /* collisions seen on all interfaces */
unsigned v_swtch; /* total context switches */
long avenrun[3]; /* average number of running jobs */
struct timeval boottime; /* time of last boot */
};
struct statstime { /* RSTATVERS_TIME */
int cp_time[4]; /* the time spent in each CPU state */
int dk_xfer[4]; /* total number of disk transfers
on each of the disk interfaces */
unsigned v_pgpgin; /* total VM pages paged in */
unsigned v_pgpgout; /* total VM pages paged out */
unsigned v_pswpin; /* total VM pages paged swapped in */
unsigned v_pswpout; /* total VM pages paged swapped out */
unsigned v_intr; /* total interrupts */
int if_ipackets; /* inbound packets on all interfaces */
int if_ierrors; /* inbound errors on all interfaces */
int if_opackets; /* outbound packets on all interfaces */
int if_oerrors; /* outbound errors on all interfaces */
int if_collisions; /* collisions seen on all interfaces */
unsigned v_swtch; /* total context switches */
long avenrun[3]; /* average number of running jobs */
struct timeval boottime; /* time of last boot */
struct timeval curtime; /* current system time */
};
RPC Info
Program number:
XDR routines:
int xdr_stats(xdrs, stat)
XDR *xdrs;
struct stats *stat;
int xdr_statsswtch(xdrs, stat)
XDR *xdrs;
struct statsswtch *stat;
int xdr_statstime(xdrs, stat)
XDR *xdrs;
struct statstime *stat;
int xdr_timeval(xdrs, tv)
XDR *xdrs;
struct timeval *tv;
Procs:
Takes no arguments, returns long
which is true if remote host has a disk.
Takes no arguments, return struct statsxxx,
depending on version.
Versions:
WARNINGS
User applications that call this routine must be linked with For example,
AUTHOR
was developed by Sun Microsystems, Inc.
SEE ALSO rup(1), rstatd(1M).
rstat(3N)