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authorStefano Brivio <sbrivio@redhat.com>2022-09-21 01:21:32 +0200
committerStefano Brivio <sbrivio@redhat.com>2022-09-22 16:54:09 +0200
commitdf29ebfe02aa0639278527b0fa2d90074263af0f (patch)
tree035b0a97ba614114a098b0fc9d61e35813dbbc8b
parent9f8b783d4a3860fa22082c57c3054fbc062def17 (diff)
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test/perf: Disable periodic throughput reports to avoid vhost hang
It appears that if we run throughput tests with one-second periodic reports, the sending side of the vhost channel used for SSH-based command dispatch occasionally stops working altogether. I haven't investigated this further, all I see is that output is truncated at some point, and doesn't resume. If we use gzip compression (ssh -C) this happens less frequently, but it still happens, seemingly indicating the issue is probably related to vhost itself. Disable periodic reports in iperf3 clients. The -i options were actually redundant, so remove them from both test files as well as from test_iperf3(). Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
-rwxr-xr-xtest/lib/test2
-rw-r--r--test/perf/passt_tcp2
-rw-r--r--test/perf/passt_udp2
-rw-r--r--test/perf/pasta_tcp2
-rw-r--r--test/perf/pasta_udp2
5 files changed, 5 insertions, 5 deletions
diff --git a/test/lib/test b/test/lib/test
index b69d519..d68ade4 100755
--- a/test/lib/test
+++ b/test/lib/test
@@ -44,7 +44,7 @@ test_iperf3() {
'(' \
' for i in $(seq 0 '${__procs}'); do' \
' iperf3 -c '${__dest}' -p '${__port} \
- ' -t'${__time}' -T s${i} '"${@}"' &' \
+ ' -t'${__time}' -i0 -T s${i} '"${@}"' &' \
' done;' \
' wait' \
')'
diff --git a/test/perf/passt_tcp b/test/perf/passt_tcp
index 5f0aa3a..5ba5450 100644
--- a/test/perf/passt_tcp
+++ b/test/perf/passt_tcp
@@ -46,7 +46,7 @@ set THREADS 1
set STREAMS 8
set TIME 10
hout OMIT echo __TIME__ / 6 | bc -l
-set OPTS -Z -P __STREAMS__ -l 1M -i1 -O__OMIT__ --pacing-timer 1000000
+set OPTS -Z -P __STREAMS__ -l 1M -O__OMIT__ --pacing-timer 1000000
info Throughput in Gbps, latency in µs, one thread at __FREQ__ GHz, __STREAMS__ streams
report passt tcp __THREADS__ __FREQ__
diff --git a/test/perf/passt_udp b/test/perf/passt_udp
index 6bd86ff..fd2ddc1 100644
--- a/test/perf/passt_udp
+++ b/test/perf/passt_udp
@@ -38,7 +38,7 @@ hout FREQ [ -n "__FREQ_CPUFREQ__" ] && echo __FREQ_CPUFREQ__ || echo __FREQ_PROC
set THREADS 4
set STREAMS 1
set TIME 10
-set OPTS -u -i1 -P __STREAMS__ --pacing-timer 1000
+set OPTS -u -P __STREAMS__ --pacing-timer 1000
info Throughput in Gbps, latency in µs, __THREADS__ threads at __FREQ__ GHz, one stream each
diff --git a/test/perf/pasta_tcp b/test/perf/pasta_tcp
index 44c5e54..1847c83 100644
--- a/test/perf/pasta_tcp
+++ b/test/perf/pasta_tcp
@@ -25,7 +25,7 @@ set THREADS 2
set STREAMS 2
set TIME 10
hout OMIT echo __TIME__ / 6 | bc -l
-set OPTS -Z -w 4M -l 1M -P __STREAMS__ -i1 -O__OMIT__ --pacing-timer 10000
+set OPTS -Z -w 4M -l 1M -P __STREAMS__ -O__OMIT__ --pacing-timer 10000
hout FREQ_PROCFS (echo "scale=1"; sed -n 's/cpu MHz.*: \([0-9]*\)\..*$/(\1+10^2\/2)\/10^3/p' /proc/cpuinfo) | bc -l | head -n1
hout FREQ_CPUFREQ (echo "scale=1"; printf '( %i + 10^5 / 2 ) / 10^6\n' $(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq) ) | bc -l
diff --git a/test/perf/pasta_udp b/test/perf/pasta_udp
index abb88b0..27ea724 100644
--- a/test/perf/pasta_udp
+++ b/test/perf/pasta_udp
@@ -23,7 +23,7 @@ hout FREQ [ -n "__FREQ_CPUFREQ__" ] && echo __FREQ_CPUFREQ__ || echo __FREQ_PROC
set THREADS 1
set STREAMS 4
set TIME 10
-set OPTS -u -i1 -P __STREAMS__
+set OPTS -u -P __STREAMS__
info Throughput in Gbps, latency in µs, one thread at __FREQ__ GHz, __STREAMS__ streams