From nobody Thu Oct 16 16:54:52 2025 X-Original-To: dev-commits-src-main@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 4cnYwF2My7z6CnDx; Thu, 16 Oct 2025 16:54:53 +0000 (UTC) (envelope-from git@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 "R12" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4cnYwF1h0rz3gLK; Thu, 16 Oct 2025 16:54:53 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1760633693; 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; bh=zie2NdrWICGiWg3ZJb6xY7tqRqF38PfO6see3dHVuy4=; b=PlU2ZjWwqnrhjGAKLXm5ZYA9a3IPxild9qgUf7c4vGg3ZCbeuOy07MFlMe8lRALzq9PJpS d8rOoG35gCPWxSGwQzWvrAES/jEUwyGFYzebA6osP/LCG01lOl2FpHfIS9qexE/A4sn+bH VPtK0WdFSWnqOT7oQeGFA4G/IPZ9yu0SSv5VhE6isS/kQiVUazNaJCGy+oO6S5gxnKi+ug v+iF5Ltnwq9uAZyc9256pIpzXzNpPilKNRIsY2p/qaR8VMarv7lH8e4dD/oDrCVKuxDhmH nHZE/m0zDEArSzv8OCDIpSTDwuldlrWrvEcCV3+NuyMv5hXDAxXNkJwkCXXt8Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1760633693; 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; bh=zie2NdrWICGiWg3ZJb6xY7tqRqF38PfO6see3dHVuy4=; b=qpnaX/y49OqrTwczfzShjLkK7PgiTwYSk2wtrPpm5jIg2Wb/yPu/MrnkmipbC1qHUTi+rv n3hCLzzYIr2KRkBz49oXzaYITYge6kDxXytoo7afUuqyk7ICt1mliySnfw5egRLTaaIcA1 OIirz16Ta5TuwoXB5qd1bBJHT61XNGXvPUSnBb4wDlQtVbZ8wrYxvtdWyQajrZH0Mf8Wp3 VNIdBMl4BtL57NJnOA4LvnILj0mgrGa1amViwdqjPFHB1x7kn5LbuWh1UfUIerOsYeb8Wa xUVtBQ54ZBlQEd3COeWqK1iyQVJIPkdbuD+E2eDLDQpXM953eUGVqGLwz0jFOg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1760633693; a=rsa-sha256; cv=none; b=U/8E1wQCgOuAHUngParO0JGdSHQxi04yx9Qq8Td99ltNFsztmtHNftCNq+lQlUj0d+3bSQ hxCBQaUVBmtDvCLGPXMBFaGb97hptI/+P4IbUs6rGiT9UkmscCMmhGM1JC8SF8dRWjGrK5 C3w/kStQ2K8Uu0X80jUpqXxmYP+sYcBS+egQQYjQ61SGYSplhmnB1f9BE8YqdK+9+N6wMu 4NbUdz1YSvkhaWiWJ8qyoYoFLWY6HsYcMmDL3GnRpcK8s1TfH8t/v6UgsFvfDEvOlrykD/ +OlUBqAmmoMtNEb0d8OTc5chgCX/mhSWo6rzFN0zU+xstpxvcnsEonDr2gdjmA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (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 4cnYwF0z1Dz1Xr; Thu, 16 Oct 2025 16:54:53 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.18.1/8.18.1) with ESMTP id 59GGsqvV054327; Thu, 16 Oct 2025 16:54:52 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.18.1/8.18.1/Submit) id 59GGsqbs054324; Thu, 16 Oct 2025 16:54:52 GMT (envelope-from git) Date: Thu, 16 Oct 2025 16:54:52 GMT Message-Id: <202510161654.59GGsqbs054324@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Michael Tuexen Subject: git: 1fe6497b48d6 - main - socket: bump socket buffer limit to 8MB List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: tuexen X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 1fe6497b48d6954ac07870d920b2e5d6d206be5e Auto-Submitted: auto-generated The branch main has been updated by tuexen: URL: https://cgit.FreeBSD.org/src/commit/?id=1fe6497b48d6954ac07870d920b2e5d6d206be5e commit 1fe6497b48d6954ac07870d920b2e5d6d206be5e Author: Michael Tuexen AuthorDate: 2025-10-15 20:04:00 +0000 Commit: Michael Tuexen CommitDate: 2025-10-15 20:14:53 +0000 socket: bump socket buffer limit to 8MB Bump the socket buffer limit from 2 MB to 8MB. In particular, this allows to use larger values for TCP sockets, which may result in higher throughput values with default settings. In the review I was proposing using 16 MB, but in the transport call today we settled on a more conservative value of 8. Bumping it further will be done in combination with mitigations for mbuf exhaustion attacks. Reviewed by: rscheff, Peter Lei, jtl, thj MFC after: 3 days Sponsored by: Netflix, Inc. Differential Revision: https://reviews.freebsd.org/D52873 --- sys/sys/sockbuf.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/sys/sockbuf.h b/sys/sys/sockbuf.h index b4593f38f592..739723754b7d 100644 --- a/sys/sys/sockbuf.h +++ b/sys/sys/sockbuf.h @@ -62,7 +62,7 @@ #include #include -#define SB_MAX (2*1024*1024) /* default for max chars in sockbuf */ +#define SB_MAX (8*1024*1024) /* default for max chars in sockbuf */ struct ktls_session; struct mbuf;