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Name	Size	Permission
arm	[ DIR ]	drwxr-xr-x
arm64	[ DIR ]	drwxr-xr-x
i386	[ DIR ]	drwxr-xr-x
ia64	[ DIR ]	drwxr-xr-x
powerpc	[ DIR ]	drwxr-xr-x
s390	[ DIR ]	drwxr-xr-x
x86_64	[ DIR ]	drwxr-xr-x
atomic.stp	1.52 KB	-rw-r--r--
aux_syscalls.stp	139.14 KB	-rw-r--r--
context-caller.stp	3.07 KB	-rw-r--r--
context-envvar.stp	1.71 KB	-rw-r--r--
context-symbols.stp	11.98 KB	-rw-r--r--
context-unwind.stp	2.81 KB	-rw-r--r--
context.stp	17.76 KB	-rw-r--r--
context.stpm	125 B	-rw-r--r--
conversions-guru.stp	5.56 KB	-rw-r--r--
conversions.stp	10.92 KB	-rw-r--r--
ctime.stp	5.32 KB	-rw-r--r--
dentry.stp	9.79 KB	-rw-r--r--
dev.stp	1.79 KB	-rw-r--r--
endian.stp	602 B	-rw-r--r--
guru-delay.stp	1.2 KB	-rw-r--r--
guru-signal.stp	1.07 KB	-rw-r--r--
inet.stp	1.42 KB	-rw-r--r--
inet_sock.stp	1.31 KB	-rw-r--r--
ioblock.stp	12.55 KB	-rw-r--r--
ioscheduler.stp	11.74 KB	-rw-r--r--
ip.stp	5.23 KB	-rw-r--r--
ipmib-filter-default.stp	965 B	-rw-r--r--
ipmib.stp	12.55 KB	-rw-r--r--
irq.stp	5 KB	-rw-r--r--
json.stp	8.92 KB	-rw-r--r--
json.stpm	6.11 KB	-rw-r--r--
kprocess.stp	4.38 KB	-rw-r--r--
kretprobe.stp	2.1 KB	-rw-r--r--
linuxmib-filter-default.stp	876 B	-rw-r--r--
linuxmib.stp	3.38 KB	-rw-r--r--
loadavg.stp	1.87 KB	-rw-r--r--
logging.stp	2.08 KB	-rw-r--r--
memory.stp	17.77 KB	-rw-r--r--
nd_syscalls.stp	138.14 KB	-rw-r--r--
nd_syscalls2.stp	161.75 KB	-rw-r--r--
netfilter.stp	31.56 KB	-rw-r--r--
networking.stp	7.17 KB	-rw-r--r--
nfs.stp	37.86 KB	-rw-r--r--
nfs_proc.stp	55.3 KB	-rw-r--r--
nfs_proc.stpm	1.18 KB	-rw-r--r--
nfsd.stp	39.97 KB	-rw-r--r--
nfsderrno.stp	11.7 KB	-rw-r--r--
panic.stp	1.07 KB	-rw-r--r--
perf.stp	4.5 KB	-rw-r--r--
proc_mem.stp	11.49 KB	-rw-r--r--
pstrace.stp	773 B	-rw-r--r--
rcu.stp	917 B	-rw-r--r--
rlimit.stp	1.35 KB	-rw-r--r--
rpc.stp	37.94 KB	-rw-r--r--
scheduler.stp	11.33 KB	-rw-r--r--
scsi.stp	9.46 KB	-rw-r--r--
signal.stp	28.35 KB	-rw-r--r--
socket.stp	33.41 KB	-rw-r--r--
syscalls.stp	136.01 KB	-rw-r--r--
syscalls.stpm	11.28 KB	-rw-r--r--
syscalls2.stp	158.1 KB	-rw-r--r--
syscalls_cfg_trunc.stp	111 B	-rw-r--r--
target_set.stp	1.71 KB	-rw-r--r--
task.stp	19.07 KB	-rw-r--r--
task.stpm	157 B	-rw-r--r--
task_ancestry.stp	1.57 KB	-rw-r--r--
task_time.stp	7.45 KB	-rw-r--r--
tcp.stp	21.98 KB	-rw-r--r--
tcpmib-filter-default.stp	885 B	-rw-r--r--
tcpmib.stp	10.29 KB	-rw-r--r--
timestamp.stp	1.72 KB	-rw-r--r--
timestamp_gtod.stp	1.59 KB	-rw-r--r--
timestamp_monotonic.stp	5.12 KB	-rw-r--r--
tty.stp	7.15 KB	-rw-r--r--
tzinfo.stp	803 B	-rw-r--r--
ucontext-symbols.stp	8.62 KB	-rw-r--r--
ucontext-unwind.stp	3.64 KB	-rw-r--r--
ucontext.stp	2.18 KB	-rw-r--r--
udp.stp	5.73 KB	-rw-r--r--
utrace.stp	1.33 KB	-rw-r--r--
vfs.stp	26.83 KB	-rw-r--r--

Code Editor : ioscheduler.stp

// IO scheduler tapset
// Copyright (C) 2005, 2006 IBM Corp.
// Copyright (C) 2010-2015 Red Hat Inc.
//
// This file is part of systemtap, and is free software.  You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.
// <tapsetdescription>
// This family of probe points is used to probe IO scheduler activities. 
// </tapsetdescription>
%{
#include <linux/blkdev.h>
#include <linux/elevator.h>
%}

/**
 * probe ioscheduler.elv_next_request - Fires when a request is retrieved from the request queue
 * @name: Name of the probe point
 * @elevator_name: The type of I/O elevator currently enabled
 */
probe ioscheduler.elv_next_request = kernel.function("blk_peek_request") !,
				     kernel.function("elv_next_request")
{
	name = "elv_next_request"
	elevator_name = kernel_string2(
		@choose_defined($q->elevator->type->elevator_name,
			@choose_defined($q->elevator->elevator_type->elevator_name,
                                        $q->elevator->elevator_name)), "")
}

/**
 * probe ioscheduler.elv_next_request.return - Fires when a request retrieval issues a return signal
 * @name: Name of the probe point
 * @rq: Address of the request
 * @rq_flags: Request flags
 * @disk_major: Disk major number of the request
 * @disk_minor: Disk minor number of the request
 */
probe ioscheduler.elv_next_request.return =
		kernel.function("blk_peek_request").return !,
		kernel.function("elv_next_request").return
{
	name = "elv_next_request"
	if ($return == 0)  {
		rq = 0
		rq_flags = 0
		disk_major = -1
		disk_minor = -1
	} else {
		rq = $return
		rq_flags = @choose_defined($return->cmd_flags, $return->flags)
		if ($return->rq_disk == 0)  {
			disk_major = -1
			disk_minor = -1
		} else {
			disk_major = $return->rq_disk->major
			disk_minor = $return->rq_disk->first_minor
		}
	}
}

/**
 * probe ioscheduler.elv_completed_request - Fires when a request is completed
 * @name: Name of the probe point
 * @elevator_name: The type of I/O elevator currently enabled
 * @rq: Address of the request
 * @rq_flags: Request flags
 * @disk_major: Disk major number of the request
 * @disk_minor: Disk minor number of the request
 */
probe ioscheduler.elv_completed_request
	= kernel.function("elv_completed_request")
{
	name = "elv_completed_request"
	elevator_name = kernel_string2(
		@choose_defined($q->elevator->type->elevator_name,
			@choose_defined($q->elevator->elevator_type->elevator_name,
                                        $q->elevator->elevator_name)), "")
	if($rq == 0)  {
		disk_major = -1
		disk_minor = -1
	} else {
		if($rq->rq_disk == 0)  {
			disk_major = -1
			disk_minor = -1
		} else {
			disk_major = $rq->rq_disk->major
			disk_minor = $rq->rq_disk->first_minor
		}
	}

rq = $rq
	rq_flags = ($rq == 0) ? 0
		: @choose_defined($rq->cmd_flags, $rq->flags)
}

/**
 * probe ioscheduler.elv_add_request.kp - kprobe based probe to indicate that a request was added to the request queue
 * @name: Name of the probe point
 * @elevator_name: The type of I/O elevator currently enabled
 * @q: pointer to request queue
 * @rq: Address of the request
 * @rq_flags: Request flags
 * @disk_major: Disk major number of the request
 * @disk_minor: Disk minor number of the request
 */
// when a request is added to the request queue
probe ioscheduler.elv_add_request.kp =
		kernel.function("elv_insert") !,
		kernel.function("__elv_add_request")
{
	name = "elv_add_request"
	elevator_name = kernel_string2(
		@choose_defined($q->elevator->type->elevator_name,
			@choose_defined($q->elevator->elevator_type->elevator_name,
                                        $q->elevator->elevator_name)), "")
	q = $q
	if($rq == 0)  {
		disk_major = -1
		disk_minor = -1
	} else {
		if($rq->rq_disk == 0)  {
			disk_major = -1
			disk_minor = -1
		} else {
			disk_major = $rq->rq_disk->major
			disk_minor = $rq->rq_disk->first_minor
		}
	}

rq = $rq
	rq_flags = ($rq == 0) ? 0
		: @choose_defined($rq->cmd_flags, $rq->flags)
}

/**
 * probe ioscheduler.elv_add_request.tp - tracepoint based probe to indicate a request is added to the request queue.
 * @name		: Name of the probe point
 * @elevator_name	: The type of I/O elevator currently enabled.
 * @q			: Pointer to request queue.
 * @rq			: Address of request.
 * @rq_flags		: Request flags.
 * @disk_major		: Disk major no of request.
 * @disk_minor		: Disk minor number of request.
 *
 */
probe ioscheduler.elv_add_request.tp = kernel.trace("block_rq_insert") ?
{
	name = "elv_add_request"
	q =  $q
	elevator_name = kernel_string2(
		@choose_defined($q->elevator->type->elevator_name,
			@choose_defined($q->elevator->elevator_type->elevator_name,
                                        $q->elevator->elevator_name)), "")
	rq = $rq