kernel_blocking.c File Reference

#include <assert.h>
#include <include/linux_info.h>
#include "kernel_blocking.h"
#include "perf-util.h"
#include "perf_mmap.h"
#include "event_custom.h"

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Macros
#define	KERNEL_BLOCKING_DEBUG   0
#define	EVNAME_KERNEL_BLOCK   "BLOCKTIME"
#define	EVNAME_CONTEXT_SWITCHES   "CS"

Functions
static void	blame_kernel_time (cct_node_t *cct_kernel, perf_mmap_data_t *mmap_data)
static void	kernel_block_handler (event_handler_arg_t *args)
static int	register_blocking (sample_source_t *self, event_custom_t *event, struct event_threshold_s *period)
void	kernel_blocking_init ()

Variables
static int	metric_blocking_index = -1
static __thread u64	time_cs_out = 0
static __thread cct_node_t *	cct_kernel = NULL
static __thread u32	cpu = 0
static __thread u32	pid = 0
static __thread u32	tid = 0

Macro Definition Documentation

EVNAME_CONTEXT_SWITCHES

#define EVNAME_CONTEXT_SWITCHES   "CS"

Definition at line 76 of file kernel_blocking.c.

EVNAME_KERNEL_BLOCK

#define EVNAME_KERNEL_BLOCK   "BLOCKTIME"

Definition at line 75 of file kernel_blocking.c.

KERNEL_BLOCKING_DEBUG

#define KERNEL_BLOCKING_DEBUG   0

WARNING : THIS IS AN EXPERIMENTAL FEATURE

Kernel blocking event is not validated yet, and only works for Kernel 4.3 (at least). This file will be updated once we find a way to make it work properly.

Definition at line 69 of file kernel_blocking.c.

Function Documentation

blame_kernel_time()

static void blame_kernel_time ( cct_node_t *  cct_kernel, perf_mmap_data_t *  mmap_data  )

static

Definition at line 104 of file kernel_blocking.c.

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kernel_block_handler()

static void kernel_block_handler ( event_handler_arg_t *  args )

static

Definition at line 156 of file kernel_blocking.c.

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kernel_blocking_init()

void kernel_blocking_init

(

)

Definition at line 301 of file kernel_blocking.c.

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register_blocking()

static int register_blocking ( sample_source_t *  self, event_custom_t *  event, struct event_threshold_s *  period  )

static

Definition at line 238 of file kernel_blocking.c.

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Variable Documentation

cct_kernel

__thread cct_node_t* cct_kernel = NULL

static

Definition at line 95 of file kernel_blocking.c.

cpu

__thread u32 cpu = 0

static

Definition at line 96 of file kernel_blocking.c.

metric_blocking_index

int metric_blocking_index = -1

static

Definition at line 92 of file kernel_blocking.c.

pid

__thread u32 pid = 0

static

Definition at line 97 of file kernel_blocking.c.

tid

__thread u32 tid = 0

static

Definition at line 97 of file kernel_blocking.c.

time_cs_out

__thread u64 time_cs_out = 0

static

Definition at line 94 of file kernel_blocking.c.