From nobody Sun Oct 19 07:37:32 2025 X-Original-To: dev-commits-src-all@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 4cq9Pn2gBRz6ChYL; Sun, 19 Oct 2025 07:37:33 +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 4cq9Pm3bcHz3gt2; Sun, 19 Oct 2025 07:37:32 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1760859452; 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=vNPwwPYW/S4ZUUmZQHc7mIVC3PMJL5YSG+GS0BoY2do=; b=fP/Z0Y1icAFNIT2cGpBxkJLbPaNli3gDEHs8eFSLK/a4ASrYw2Y83K2q0dvWDnydju605J wXybdnAQCxXcZrVtsFSZaQDAND5D5DkA0zcpCMsFOr5a+RTyMbR4n9vPe5/3edMQJjNDqz MOKQZh9tSAadJt7cVfU7IHZw+d+cBJ9c5PLW7HnZgr4XKaBxlqwyktJBOjD1TgKh4zQeKP og8jsja6wsn2r3oJbqTY7dNFmr8oiAY9QbjLDnBcaknWWLhhEaLZu6PgAt+LrFi/nl0gTl 2Ss9s7Lyq1jmyGtSrkLaWMCjmo3SrA6542nOPSVUMVrsST2Ahz1o2H4FCdwVyA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1760859452; 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=vNPwwPYW/S4ZUUmZQHc7mIVC3PMJL5YSG+GS0BoY2do=; b=PLSQPAMOwUQsx92z3sMbn3wJDMMpSCIn6NnzUuP8diQ+5GdsDELKKZO8P1tklLkHfpPGk3 AGNMJwu2a47y2g5LA8PYf0iNU65/6qrBon+g4uOEx3Naj0lo9G44RvUpZ1uPUo/2SNUW2Q fI/OKgCLNVQ/mtbhIUwFjpTB897z0/D+fFmHrCCzbVJrz7bzlk2Hx+RYGlteb0SRLnu6Q5 8AjeVSDWN+0A9gND/q+1yrVcaUVJN2bM/Tz2Gi6zWiBpJghy/K2/oOraCDw1+TfoGkUbXz Oegl26kHcadDLXG2GmfkAnuSJ8YrdwLA4dmmM2JS6QEtzvtjqdwuWLf+UIt+kw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1760859452; a=rsa-sha256; cv=none; b=ofimFnMZrsfRgNgiGmF/5458mnlwT8zYqLkT2faQOcLo0ra2CyvpnfzapjCxsqrdhB8lUs PrKMLhRvvWr9zGNLM0FH1JJU7fVyAtg/en4aBWgISqtytcnWuhKFyAu9AwoJnGii10r9bQ lI78REeWZVK8lMoJO/Y6ns4GLWWQCBu8yTx9bz6cIu+ZXONtbCcJhXFvsRfBQXWvMMt3w8 RlfLuXbrrRMeVVvznfXLw5KiUKT74FhyMIwtuvB+fwIqnTeWQNu8Od36y7eWU8gLYp47Kl psPNRAuWFSSsGoUUZyNpib6PLrwG0utDBFh+CrPS7lJ9qQoHAzfDYS344KLjzg== 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 4cq9Pm3BkHz2y6; Sun, 19 Oct 2025 07:37:32 +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 59J7bWr9046582; Sun, 19 Oct 2025 07:37:32 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.18.1/8.18.1/Submit) id 59J7bWZ7046579; Sun, 19 Oct 2025 07:37:32 GMT (envelope-from git) Date: Sun, 19 Oct 2025 07:37:32 GMT Message-Id: <202510190737.59J7bWZ7046579@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Michael Tuexen Subject: git: 167b9fac60a7 - stable/15 - socket: bump socket buffer limit to 8MB List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@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/stable/15 X-Git-Reftype: branch X-Git-Commit: 167b9fac60a7d191349b9d841f2aa7d5d0f3eb94 Auto-Submitted: auto-generated The branch stable/15 has been updated by tuexen: URL: https://cgit.FreeBSD.org/src/commit/?id=167b9fac60a7d191349b9d841f2aa7d5d0f3eb94 commit 167b9fac60a7d191349b9d841f2aa7d5d0f3eb94 Author: Michael Tuexen AuthorDate: 2025-10-15 20:04:00 +0000 Commit: Michael Tuexen CommitDate: 2025-10-19 07:35:12 +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 Sponsored by: Netflix, Inc. Differential Revision: https://reviews.freebsd.org/D52873 (cherry picked from commit 1fe6497b48d6954ac07870d920b2e5d6d206be5e) --- 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;