From: Matt Corallo <git@bluematt.me>
Date: Sun, 10 Oct 2021 17:16:50 +0000 (+0000)
Subject: Reduce bash CPU time for high-core-count machines in dropcount.sh
X-Git-Url: http://git.bitcoin.ninja/index.cgi?p=flowspec-xdp;a=commitdiff_plain;h=dc5a8c8f1d9227f4741a57dee92e326302ec062d

Reduce bash CPU time for high-core-count machines in dropcount.sh
---

diff --git a/dropcount.sh b/dropcount.sh
index 541dd30..5f15b5e 100755
--- a/dropcount.sh
+++ b/dropcount.sh
@@ -17,7 +17,7 @@ fi
 CNT=0
 }
 MAP_CONTENTS="$(bpftool map show | grep drop_cnt_map | awk '{ print $1 }' | tr -d ':' | while read IF; do
-	bpftool map dump id "$IF"
+	bpftool map dump id "$IF" | grep "bytes\|packets\|key" | grep -v '\(bytes\|packets\)": 0\(,\)*$'
 done)"
 echo "$MAP_CONTENTS" | {
 	declare -a BYTES