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turbostat: Increase output buffer size to accommodate C8-C10

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On platforms with C8-C10 support, the additional C-states cause
turbostat to overrun its output buffer of 128 bytes per CPU.  Increase
this to 256 bytes per CPU.

[ As a bugfix, this should go into 3.10; however, since the C8-C10
  support didn't go in until after 3.9, this need not go into any stable
  kernel. ]

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Cc: Len Brown <len.brown@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Josh Triplett 2013-06-12 17:26:37 -07:00 committed by Linus Torvalds
parent 26e04462c8
commit b844db3187
1 changed files with 1 additions and 1 deletions
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2
tools/power/x86/turbostat/turbostat.c
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@ -2191,7 +2191,7 @@ int initialize_counters(int cpu_id)
void allocate_output_buffer()
{
output_buffer = calloc(1, (1 + topo.num_cpus) * 128);
output_buffer = calloc(1, (1 + topo.num_cpus) * 256);
outp = output_buffer;
if (outp == NULL) {
perror("calloc");