FreeBSD/Linux Kernel Cross Reference
sys/kern/counters.h

     /* 
      * Mach Operating System
      * Copyright (c) 1993,1991,1990,1989,1988,1987 Carnegie Mellon University
      * All Rights Reserved.
      * 
      * Permission to use, copy, modify and distribute this software and its
      * documentation is hereby granted, provided that both the copyright
      * notice and this permission notice appear in all copies of the
      * software, derivative works or modified versions, and any portions
     * thereof, and that both notices appear in supporting documentation.
     * 
     * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
     * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     * 
     * Carnegie Mellon requests users of this software to return to
     * 
     *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
     *  School of Computer Science
     *  Carnegie Mellon University
     *  Pittsburgh PA 15213-3890
     * 
     * any improvements or extensions that they make and grant Carnegie Mellon
     * the rights to redistribute these changes.
     */
    /*
     * HISTORY
     * $Log:        counters.h,v $
     * Revision 2.4  93/11/17  17:07:48  dbg
     *      ANSI-fied.
     *      [93/06/16            dbg]
     * 
     * Revision 2.3  91/05/14  16:40:30  mrt
     *      Correcting copyright
     * 
     * Revision 2.2  91/03/16  15:16:06  rpd
     *      Created.
     *      [91/03/13            rpd]
     * 
     */
    
    #ifndef _KERN_COUNTERS_
    #define _KERN_COUNTERS_
    
    #include <mach_counters.h>
    
    /*
     *      We can count various interesting events and paths.
     *
     *      Use counter() to change the counters, eg:
     *              counter(c_idle_thread_block++);
     *      Use counter_always() for non-conditional counters.
     */
    
    #define counter_always(code)    code
    
    #if     MACH_COUNTERS
    
    #define counter(code)           counter_always(code)
    
    #else   /* MACH_COUNTERS */
    
    #define counter(code)
    
    #endif  /* MACH_COUNTERS */
    
    /*
     *      We define the counters with individual integers,
     *      instead of a big structure, so that ddb
     *      will know the addresses of the counters.
     */
    
    typedef unsigned int mach_counter_t;
    
    extern mach_counter_t c_thread_invoke_hits;
    extern mach_counter_t c_thread_invoke_misses;
    extern mach_counter_t c_thread_invoke_csw;
    extern mach_counter_t c_thread_handoff_hits;
    extern mach_counter_t c_thread_handoff_misses;
    
    #if     MACH_COUNTERS
    extern mach_counter_t c_threads_current;
    extern mach_counter_t c_threads_max;
    extern mach_counter_t c_threads_min;
    extern mach_counter_t c_threads_total;
    extern mach_counter_t c_stacks_current;
    extern mach_counter_t c_stacks_max;
    extern mach_counter_t c_stacks_min;
    extern mach_counter_t c_stacks_total;
    extern mach_counter_t c_clock_ticks;
    extern mach_counter_t c_ipc_mqueue_send_block;
    extern mach_counter_t c_ipc_mqueue_receive_block_user;
    extern mach_counter_t c_ipc_mqueue_receive_block_kernel;
    extern mach_counter_t c_mach_msg_trap_block_fast;
    extern mach_counter_t c_mach_msg_trap_block_slow;
    extern mach_counter_t c_mach_msg_trap_block_exc;
    extern mach_counter_t c_exception_raise_block;
    extern mach_counter_t c_swtch_block;
    extern mach_counter_t c_swtch_pri_block;
   extern mach_counter_t c_thread_switch_block;
   extern mach_counter_t c_thread_switch_handoff;
   extern mach_counter_t c_ast_taken_block;
   extern mach_counter_t c_thread_halt_self_block;
   extern mach_counter_t c_vm_fault_page_block_busy_user;
   extern mach_counter_t c_vm_fault_page_block_busy_kernel;
   extern mach_counter_t c_vm_fault_page_block_backoff_user;
   extern mach_counter_t c_vm_fault_page_block_backoff_kernel;
   extern mach_counter_t c_vm_page_wait_block_user;
   extern mach_counter_t c_vm_page_wait_block_kernel;
   extern mach_counter_t c_vm_pageout_block;
   extern mach_counter_t c_vm_pageout_scan_block;
   extern mach_counter_t c_idle_thread_block;
   extern mach_counter_t c_idle_thread_handoff;
   extern mach_counter_t c_sched_thread_block;
   extern mach_counter_t c_io_done_thread_block;
   extern mach_counter_t c_net_thread_block;
   extern mach_counter_t c_reaper_thread_block;
   extern mach_counter_t c_swapin_thread_block;
   extern mach_counter_t c_action_thread_block;
   #endif  /* MACH_COUNTERS */
   
   #endif  /* _KERN_COUNTERS_ */

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