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| /openbmc/linux/tools/power/x86/turbostat/ |
| H A D | turbostat.c | 22048c54 Sat Mar 04 14:42:48 CST 2017 Len Brown <len.brown@intel.com> tools/power turbostat: bugfix: GFXMHz column not changing
turbostat displays a GFXMHz column, which comes from reading
/sys/class/graphics/fb0/device/drm/card0/gt_cur_freq_mhz
But GFXMHz was not changing, even when a manual
cat /sys/class/graphics/fb0/device/drm/card0/gt_cur_freq_mhz
showed a new value.
It turns out that a rewind() on the open file is not sufficient,
fflush() (or a close/open) is needed to read fresh values.
Reported-by: Yaroslav Isakov <yaroslav.isakov@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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