From nobody Fri Apr 22 21:23:05 2022 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id EAC1F1A83A4D for ; Fri, 22 Apr 2022 21:23:05 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4KlS7F5bN1z3w2M for ; Fri, 22 Apr 2022 21:23:05 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 9F63524A5D for ; Fri, 22 Apr 2022 21:23:05 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 23MLN5kr032326 for ; Fri, 22 Apr 2022 21:23:05 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 23MLN55d032325 for net@FreeBSD.org; Fri, 22 Apr 2022 21:23:05 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 251052] [sctp] Throughput becomes extremely low under load Date: Fri, 22 Apr 2022 21:23:05 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.4-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: bdrewery@FreeBSD.org X-Bugzilla-Status: In Progress X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1650662585; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=uopvp7zpq7FAGt/kOK1fB6ZOcnV+enV+kERKKXqN32Y=; b=npnEAGysOlTVctFzOkSZ1SgvPqPnVpi9oZwU08QkpR0DDM4D5/ZUJ9T3M2n6QwYLcNVDn0 +eEB195vatFYn1T7kg1spwKnbw8VSIFvYhRSWVvBs82Oky51ydmpu8iZMj8+kxF6x3s/oc da6gQ7gXP8X9A4ZI0aRS5USg1VUe1gVGm7c9+q5CcWcZIeQ5iC8OAgIiluwFxtBHyLaZTP crqABxnWfbHkxg92/sHi5Cfdw8qDjEg6/rhvbYBL3oGCMfWgThNtnI/czlfMqnctjRyrLc 4i3EafMKREt/IhmneZ+MV2qaOfEuG5A7R7rMisbppjkv4tD+tqJhPMSRAaHmnQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1650662585; a=rsa-sha256; cv=none; b=Y2levjhSZuRQssNCrAd0N99EKqH8PUliEfcOX+FCE5OqIE6rzidbFl6Cb4BpM7KKCApZEe d5q1Ej7Nql3bH2BppeD1fxJUcqqi77Fx0yOQ/h2E/aBXnS2DBYgNKFiTSdBRJx/5U516YM iTf2rzotGzUSEAC4RouZ3jyNhuIOojLXQplK/UYf/kK112gJ7mXGgaGw489UJkJ7u7Hnfx JXVPLqOtWYpUrGhpOlX4lw2c/cOwlNvbMNAoxST7FzgEK2UsVCbUWjaTJoRdAHNySVPk+W xQ4eXoRkRcw2ZNi2VZEw1FWG3Iktpq7BVEmzDfAzvEDbE1JhJjqevaRTxll6+w== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D251052 --- Comment #4 from Bryan Drewery --- I see something that I think is similar with iperf3 and netperf. Using 1 st= ream is fine but using >1 stream completely kills bandwidth. `iperf3 --sctp -c 127.0.0.1` is OK. `iperf3 --sctp --nstreams 1 -c 127.0.0.= 1` is not. (Yes with 1 stream) `netperf -t SCTP_STREAM -H 127.0.0.1` is OK. `netperf -t SCTP_STREAM_MANY -H 127.0.0.1 -- -T 2` is not. --=20 You are receiving this mail because: You are the assignee for the bug.=