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New settings for governors, +30% memory bandwidth (#2590)

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* new settings for governors, +30% memory bandwidth

* CPU waste is better

* warm up frame_drop

* optional CORE arg for rtshield

* back off priorities of processes not critical to driving

* if it doesn't drive, it's not realtime

* err, resource. this should have been included

* reverse order to not spike

Co-authored-by: Comma Device <device@comma.ai>
This commit is contained in:
George Hotz
2020-11-20 19:25:12 -08:00
committed by GitHub
parent 98f891a259
commit 917eff8c30
8 changed files with 43 additions and 8 deletions
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scripts/waste
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scripts/waste.c
+17 -2
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@@ -36,8 +36,23 @@ void waste(int pid) {
double sec = seconds_since_boot();
while (1) {
for (int i = 0; i < 8; i++) {
for (int j = 0; j < 0x1000000; j+=2) {
out = vmlaq_f32(out, tmp[j], tmp[j+1]);
for (int j = 0; j < 0x1000000; j+=0x20) {
out = vmlaq_f32(out, tmp[j+0], tmp[j+1]);
out = vmlaq_f32(out, tmp[j+2], tmp[j+3]);
out = vmlaq_f32(out, tmp[j+4], tmp[j+5]);
out = vmlaq_f32(out, tmp[j+6], tmp[j+7]);
out = vmlaq_f32(out, tmp[j+8], tmp[j+9]);
out = vmlaq_f32(out, tmp[j+10], tmp[j+11]);
out = vmlaq_f32(out, tmp[j+12], tmp[j+13]);
out = vmlaq_f32(out, tmp[j+14], tmp[j+15]);
out = vmlaq_f32(out, tmp[j+16], tmp[j+17]);
out = vmlaq_f32(out, tmp[j+18], tmp[j+19]);
out = vmlaq_f32(out, tmp[j+20], tmp[j+21]);
out = vmlaq_f32(out, tmp[j+22], tmp[j+23]);
out = vmlaq_f32(out, tmp[j+24], tmp[j+25]);
out = vmlaq_f32(out, tmp[j+26], tmp[j+27]);
out = vmlaq_f32(out, tmp[j+28], tmp[j+29]);
out = vmlaq_f32(out, tmp[j+30], tmp[j+31]);
}
}
double nsec = seconds_since_boot();