Re: [Xen-devel] [PATCH 3/3] xenalyze: handle RTDS scheduler events

[George Dunlap <george.dunlap@xxxxxxxxxx>]

On 12/03/16 11:34, Dario Faggioli wrote:
> so the trace will show properly decoded info,
> rather than just a bunch of hex codes.
> 
> Signed-off-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>

Acked-by: George Dunlap <george.dunlap@xxxxxxxxxx>

> ---
> Cc: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
> Cc: Meng Xu <xumengpanda@xxxxxxxxx>
> Cc: Tianyang Chen <tiche@xxxxxxxxxxxxxx>
> Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> Cc: Wei Liu <wei.liu2@xxxxxxxxxx>
> ---
> Changes from v2:
>  * use 64 bits ints for time values (now that the scheduler
>    does that too), as suggested during review.
> 
> Changes from v1:
>  * '} * r =' turned into '} *r =', as requested
>    during review.
> ---
>  tools/xentrace/xenalyze.c |   52 
> +++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 52 insertions(+)
> 
> diff --git a/tools/xentrace/xenalyze.c b/tools/xentrace/xenalyze.c
> index 353bed7..b949986 100644
> --- a/tools/xentrace/xenalyze.c
> +++ b/tools/xentrace/xenalyze.c
> @@ -7823,6 +7823,58 @@ void sched_process(struct pcpu_info *p)
>                         r->rq_avgload, r->b_avgload);
>              }
>              break;
> +        /* RTDS (TRC_RTDS_xxx) */
> +        case TRC_SCHED_CLASS_EVT(RTDS, 1): /* TICKLE           */
> +            if(opt.dump_all) {
> +                struct {
> +                    unsigned int cpu:16;
> +                } *r = (typeof(r))ri->d;
> +
> +                printf(" %s rtds:runq_tickle cpu %u\n",
> +                       ri->dump_header, r->cpu);
> +            }
> +            break;
> +        case TRC_SCHED_CLASS_EVT(RTDS, 2): /* RUNQ_PICK        */
> +            if(opt.dump_all) {
> +                struct {
> +                    unsigned int vcpuid:16, domid:16;
> +                    uint64_t cur_dl, cur_bg;
> +                } __attribute__((packed)) *r = (typeof(r))ri->d;
> +
> +                printf(" %s rtds:runq_pick d%uv%u, deadline = %"PRIu64", "
> +                       "budget = %"PRIu64"\n", ri->dump_header,
> +                       r->domid, r->vcpuid, r->cur_dl, r->cur_bg);
> +            }
> +            break;
> +        case TRC_SCHED_CLASS_EVT(RTDS, 3): /* BUDGET_BURN      */
> +            if(opt.dump_all) {
> +                struct {
> +                    unsigned int vcpuid:16, domid:16;
> +                    uint64_t cur_bg;
> +                    int delta;
> +                } __attribute__((packed)) *r = (typeof(r))ri->d;
> +
> +                printf(" %s rtds:burn_budget d%uv%u, budget = %"PRIu64", "
> +                       "delta = %d\n", ri->dump_header, r->domid,
> +                       r->vcpuid, r->cur_bg, r->delta);
> +            }
> +            break;
> +        case TRC_SCHED_CLASS_EVT(RTDS, 4): /* BUDGET_REPLENISH */
> +            if(opt.dump_all) {
> +                struct {
> +                    unsigned int vcpuid:16, domid:16;
> +                    uint64_t cur_dl, cur_bg;
> +                } __attribute__((packed)) *r = (typeof(r))ri->d;
> +
> +                printf(" %s rtds:repl_budget d%uv%u, deadline = %"PRIu64", "
> +                       "budget = %"PRIu64"\n", ri->dump_header,
> +                       r->domid, r->vcpuid, r->cur_dl, r->cur_bg);
> +            }
> +            break;
> +        case TRC_SCHED_CLASS_EVT(RTDS, 5): /* SCHED_TASKLET    */
> +            if(opt.dump_all)
> +                printf(" %s rtds:sched_tasklet\n", ri->dump_header);
> +            break;
>          default:
>              process_generic(ri);
>          }
> 


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