Microstate Accounting for 2.6.11, patch 4/6

From: Peter Chubb (peterc_at_gelato.unsw.edu.au)
Date: 03/11/05

  • Next message: Paul Mackerras: "Re: [PATCH] AGP support for powermac G5" 
    To: akpm@osdl.org, linux-kernel@vger.kernel.org
Date:	Fri, 11 Mar 2005 15:00:08 +1100

    Microstate accounting: Account for time in interrupt handlers for I386.

     arch/i386/kernel/irq.c | 13 ++++++++++++-
     1 files changed, 12 insertions(+), 1 deletion(-)

    Index: linux-2.6-ustate/arch/i386/kernel/irq.c
    ===================================================================
    --- linux-2.6-ustate.orig/arch/i386/kernel/irq.c 2005-03-10 09:13:00.115606274 +1100
    +++ linux-2.6-ustate/arch/i386/kernel/irq.c 2005-03-10 09:16:16.032121680 +1100
    @@ -55,6 +55,8 @@
     #endif
     
             irq_enter();
    + msa_start_irq(irq);
    +
     #ifdef CONFIG_DEBUG_STACKOVERFLOW
             /* Debugging check for stack overflow: is there less than 1KB free? */
             {
    @@ -101,6 +103,7 @@
     #endif
                     __do_IRQ(irq, regs);
     
    + msa_finish_irq(irq);
             irq_exit();
     
             return 1;
    @@ -221,10 +224,18 @@
                     seq_printf(p, "%3d: ",i);
     #ifndef CONFIG_SMP
                     seq_printf(p, "%10u ", kstat_irqs(i));
    +#ifdef CONFIG_MICROSTATE
    + seq_printf(p, "%10llu", msa_irq_time(0, i));
    +#endif
     #else
                     for (j = 0; j < NR_CPUS; j++)
    - if (cpu_online(j))
    + if (cpu_online(j)) {
                                     seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
    +#ifdef CONFIG_MICROSTATE
    + seq_printf(p, "%10llu", msa_irq_time(j, i));
    +#endif
    + }
    +
     #endif
                     seq_printf(p, " %14s", irq_desc[i].handler->typename);
                     seq_printf(p, " %s", action->name);
    -
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