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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 <[email protected]>
Cc: Len Brown <[email protected]>
Cc: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Josh Triplett authored and Linus Torvalds committed 2013-06-13 09:55:56 -07:00
1 parent 26e04462c8
commit b844db3187
1 file changed
+1 -1
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tools/power/x86/turbostat/turbostat.c
+1 -1
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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");