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Limit printing to terminal height in intel_gpu_top.

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When using intel_gpu_top in a small terminal, the most important
information (ring idle/busy units) scrolls off the top of the screen.
This patch limits the number of lines printed to the terminal height
so that the most idle units (at the bottom) are truncated instead.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Kenneth Graunke 2009-12-08 22:38:18 -08:00 committed by Carl Worth
parent 94a180c0c9
commit b4b8aafc61
1 changed files with 15 additions and 5 deletions
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20
tools/intel_gpu_top.c
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@ -29,6 +29,7 @@
#include <stdlib.h>
#include <stdio.h>
#include <err.h>
#include <sys/ioctl.h>
#include "intel_gpu_tools.h"
#include "instdone.h"
@ -257,6 +258,13 @@ int main(int argc, char **argv)
qsort(top_bits_sorted, num_instdone_bits,
sizeof(struct top_bit *), top_bits_sort);
/* Limit the number of lines printed to the terminal height so the
* most important info (at the top) will stay on screen. */
unsigned short int max_lines = -1;
struct winsize ws;
if (ioctl(0, TIOCGWINSZ, &ws) != -1)
max_lines = ws.ws_row - 6; /* exclude header lines */
printf("%s", clear_screen);
print_clock_info();
@ -275,11 +283,13 @@ int main(int argc, char **argv)
if (top_bits_sorted[i]->count < 1)
break;
percent = top_bits_sorted[i]->count / SAMPLES_TO_PERCENT_RATIO;
len = printf("%30s: %3d%%: ",
top_bits_sorted[i]->bit->name,
percent);
print_percentage_bar (percent, len);
if (i < max_lines) {
percent = top_bits_sorted[i]->count / SAMPLES_TO_PERCENT_RATIO;
len = printf("%30s: %3d%%: ",
top_bits_sorted[i]->bit->name,
percent);
print_percentage_bar (percent, len);
}
top_bits_sorted[i]->count = 0;
}