From patchwork Thu Feb 1 18:42:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paolo Abeni X-Patchwork-Id: 13541646 X-Patchwork-Delegate: kuba@kernel.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AD0B684FB1 for ; Thu, 1 Feb 2024 18:43:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706812996; cv=none; b=piJP7Na4F8MX3og8eWntP3vaYvrieUK1d2gTYNwMOiKMvLlQBdoBYZ4haPvuO+D8qCeuOjcGsf4bBCTYfomaW3fCvIDoVx9YPXFKCcFaF4haTGXYwgUTfb3yKfJ894SPd+QPCZBpEntqpOo0hcwPQ7TdzKm3bI0M5jfwaxfqkRA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706812996; c=relaxed/simple; bh=kLf/Q9ZIoIeaKBi/0damf+ZeOBQhXeQUNr/Hvey+DGs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=C1AwQS3qTCT1nAVt4YLcmcS2JgxwOWvnWLr1ck7wpe7s3JkcpEiGD4Uh7Vx/fdURQLnzmFiiaeIOHnBPXRV5tU72rrrXGfdYQtOaeP2weNiAHwclcAUBiwlRbS5p1uo5M6LaIqGVWg/avq8njc3TlukjA36ETtzAEmJeYHRgd5I= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=i9rEQUgA; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="i9rEQUgA" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1706812993; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=YpOeKVqI0ILGtiMGt3955YtaEeWDHn2315Jhfo6mUSo=; b=i9rEQUgAJH4ML2/5Owg39CJs+oI6FzYDoHwxnedKrc43mHSqptC4wdJcLucZdZswMFHlJg oYlTwZYgRs99IKxA8M8QxVjPqBfG1XXcethsJoKZAbCoisemt0NWHCtXjdzg6jrpGHPHVm bGkjSPFnQiqTE1nbYQfc8g3FwSteOFA= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-32-OdvceS-aMJmLf33I0oaXZQ-1; Thu, 01 Feb 2024 13:43:08 -0500 X-MC-Unique: OdvceS-aMJmLf33I0oaXZQ-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 99BFD85A588; Thu, 1 Feb 2024 18:43:07 +0000 (UTC) Received: from gerbillo.redhat.com (unknown [10.45.224.214]) by smtp.corp.redhat.com (Postfix) with ESMTP id D9505111FB; Thu, 1 Feb 2024 18:43:05 +0000 (UTC) From: Paolo Abeni To: netdev@vger.kernel.org Cc: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Shuah Khan , Willem de Bruijn , Florian Westphal , David Ahern , linux-kselftest@vger.kernel.org Subject: [PATCH v2 net 1/4] selftests: net: cut more slack for gro fwd tests. Date: Thu, 1 Feb 2024 19:42:38 +0100 Message-ID: In-Reply-To: References: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.5 X-Patchwork-Delegate: kuba@kernel.org The udpgro_fwd.sh self-tests are somewhat unstable. There are a few timing constraints the we struggle to meet on very slow environments. Instead of skipping the whole tests in such envs, increase the test resilience WRT very slow hosts: increase the inter-packets timeouts, avoid resetting the counters every second and finally disable reduce the background traffic noise. Tested with: for I in $(seq 1 100); do ./tools/testing/selftests/kselftest_install/run_kselftest.sh \ -t net:udpgro_fwd.sh || exit -1 done in a slow environment. Fixes: a062260a9d5f ("selftests: net: add UDP GRO forwarding self-tests") Signed-off-by: Paolo Abeni --- tools/testing/selftests/net/udpgro_fwd.sh | 14 ++++++++++++-- tools/testing/selftests/net/udpgso_bench_rx.c | 2 +- 2 files changed, 13 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/net/udpgro_fwd.sh b/tools/testing/selftests/net/udpgro_fwd.sh index d6b9c759043c..9cd5e885e91f 100755 --- a/tools/testing/selftests/net/udpgro_fwd.sh +++ b/tools/testing/selftests/net/udpgro_fwd.sh @@ -39,6 +39,10 @@ create_ns() { for ns in $NS_SRC $NS_DST; do ip netns add $ns ip -n $ns link set dev lo up + + # disable route solicitations to decrease 'noise' traffic + ip netns exec $ns sysctl -qw net.ipv6.conf.default.router_solicitations=0 + ip netns exec $ns sysctl -qw net.ipv6.conf.all.router_solicitations=0 done ip link add name veth$SRC type veth peer name veth$DST @@ -80,6 +84,12 @@ create_vxlan_pair() { create_vxlan_endpoint $BASE$ns veth$ns $BM_NET_V6$((3 - $ns)) vxlan6$ns 6 ip -n $BASE$ns addr add dev vxlan6$ns $OL_NET_V6$ns/24 nodad done + + # preload neighbur cache, do avoid some noisy traffic + local addr_dst=$(ip -j -n $BASE$DST link show dev vxlan6$DST |jq -r '.[]["address"]') + local addr_src=$(ip -j -n $BASE$SRC link show dev vxlan6$SRC |jq -r '.[]["address"]') + ip -n $BASE$DST neigh add dev vxlan6$DST lladdr $addr_src $OL_NET_V6$SRC + ip -n $BASE$SRC neigh add dev vxlan6$SRC lladdr $addr_dst $OL_NET_V6$DST } is_ipv6() { @@ -119,7 +129,7 @@ run_test() { # not enable GRO ip netns exec $NS_DST $ipt -A INPUT -p udp --dport 4789 ip netns exec $NS_DST $ipt -A INPUT -p udp --dport 8000 - ip netns exec $NS_DST ./udpgso_bench_rx -C 1000 -R 10 -n 10 -l 1300 $rx_args & + ip netns exec $NS_DST ./udpgso_bench_rx -C 2000 -R 100 -n 10 -l 1300 $rx_args & local spid=$! wait_local_port_listen "$NS_DST" 8000 udp ip netns exec $NS_SRC ./udpgso_bench_tx $family -M 1 -s 13000 -S 1300 -D $dst @@ -168,7 +178,7 @@ run_bench() { # bind the sender and the receiver to different CPUs to try # get reproducible results ip netns exec $NS_DST bash -c "echo 2 > /sys/class/net/veth$DST/queues/rx-0/rps_cpus" - ip netns exec $NS_DST taskset 0x2 ./udpgso_bench_rx -C 1000 -R 10 & + ip netns exec $NS_DST taskset 0x2 ./udpgso_bench_rx -C 2000 -R 100 & local spid=$! wait_local_port_listen "$NS_DST" 8000 udp ip netns exec $NS_SRC taskset 0x1 ./udpgso_bench_tx $family -l 3 -S 1300 -D $dst diff --git a/tools/testing/selftests/net/udpgso_bench_rx.c b/tools/testing/selftests/net/udpgso_bench_rx.c index f35a924d4a30..1cbadd267c96 100644 --- a/tools/testing/selftests/net/udpgso_bench_rx.c +++ b/tools/testing/selftests/net/udpgso_bench_rx.c @@ -375,7 +375,7 @@ static void do_recv(void) do_flush_udp(fd); tnow = gettimeofday_ms(); - if (tnow > treport) { + if (!cfg_expected_pkt_nr && tnow > treport) { if (packets) fprintf(stderr, "%s rx: %6lu MB/s %8lu calls/s\n",