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(a)redhat.com>
---
test/lib/test | 2 +-
test/perf/passt_tcp | 2 +-
test/perf/passt_udp | 2 +-
test/perf/pasta_tcp | 2 +-
test/perf/pasta_udp | 2 +-
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
--
2.35.1