[Intel-gfx] [PATCH 2/9] intel_gpu_top: aim for 2000 samples per frame

[Robert Bragg]

The previous sample rate of ~167 per frame was rather low in relation to
frequency of the events being measured and so for example the derived
busy status could become quite unstable at times.
---
 tools/intel_gpu_top.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
index fef7f96..f60e58b 100644
--- a/tools/intel_gpu_top.c
+++ b/tools/intel_gpu_top.c
@@ -50,7 +50,8 @@
 #define  FORCEWAKE	    0xA18C
 #define  FORCEWAKE_ACK	    0x130090
 
-#define SAMPLES_PER_SEC             10000
+/* Aim for ~2000 samples per frame @ 60fps... */
+#define SAMPLES_PER_SEC             (60 * 2000)
 #define SAMPLES_TO_PERCENT_RATIO    (SAMPLES_PER_SEC / 100)
 
 #define MAX_NUM_TOP_BITS            100
-- 
2.0.1

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