On Tue, Jan 05, 2016 at 07:49:27PM -0300, Arnaldo Carvalho de Melo wrote:
SNIP
> [acme@zoo linux]$
> [acme@zoo linux]$ perf script
> CPU THREAD VAL ENA RUN TIME
> EVENT
> 65535 4883 356474 356474 356474
> 690200 task-clock
> 65535 4883 1 356474 356474
> 690200 context-switches
> 65535 4883 0 356474 356474
> 690200 cpu-migrations
> 65535 4883 54 356474 356474
> 690200 page-faults
> 65535 4883 1044123 360329 360329
> 690200 cycles
> 65535 4883 716911 360329 360329
> 690200 stalled-cycles-frontend
> 65535 4883 0 0 0
> 690200 stalled-cycles-backend
> 65535 4883 694609 360329 360329
> 690200 instructions
> 65535 4883 140037 360329 360329
> 690200 branches
> 65535 4883 7920 360329 360329
> 690200 branch-misses
> [acme@zoo linux]$
there's wrong conversion from u16 (-1) cpu data to int cpu_map->map[0]
attached patch fixes that for me, not sure why I did
not see that before.. I'll send new version shortly
thanks,
jirka
---
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index a0717b93d8f5..581aec244ac1 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -189,7 +189,7 @@ static struct cpu_map *cpu_map__from_entries(struct
cpu_map_entries *cpus)
unsigned i;
for (i = 0; i < cpus->nr; i++)
- map->map[i] = (int)cpus->cpu[i];
+ map->map[i] = (int)(s16)cpus->cpu[i];
}
return map;
--
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