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[174.88.77.103]) by smtp.gmail.com with ESMTPSA id x3sm2699022qtp.5.2020.10.30.07.51.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 30 Oct 2020 07:51:45 -0700 (PDT) Sender: Mark Johnston Date: Fri, 30 Oct 2020 10:51:43 -0400 From: Mark Johnston To: Mateusz Guzik Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r367165 - head/sys/fs/tmpfs Message-ID: <20201030145143.GB60293@raichu> References: <202010301407.09UE7Phw060731@repo.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Queue-Id: 4CN4yV6lBWz44TG X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=CjeOjMg8; dmarc=none; spf=pass (mx1.freebsd.org: domain of markjdb@gmail.com designates 2607:f8b0:4864:20::72f as permitted sender) smtp.mailfrom=markjdb@gmail.com X-Spamd-Result: default: False [-1.83 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36:c]; NEURAL_HAM_LONG(-1.02)[-1.023]; MIME_GOOD(-0.10)[text/plain]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_NA(0.00)[freebsd.org]; TO_DN_SOME(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; NEURAL_HAM_SHORT(-0.09)[-0.086]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::72f:from]; NEURAL_HAM_MEDIUM(-1.02)[-1.025]; FREEMAIL_TO(0.00)[gmail.com]; FORGED_SENDER(0.30)[markj@freebsd.org,markjdb@gmail.com]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; FROM_NEQ_ENVFROM(0.00)[markj@freebsd.org,markjdb@gmail.com]; MAILMAN_DEST(0.00)[svn-src-all,svn-src-head] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Oct 2020 14:51:47 -0000 On Fri, Oct 30, 2020 at 03:08:32PM +0100, Mateusz Guzik wrote: > On 10/30/20, Mateusz Guzik wrote: > > Author: mjg > > Date: Fri Oct 30 14:07:25 2020 > > New Revision: 367165 > > URL: https://svnweb.freebsd.org/changeset/base/367165 > > > > Log: > > tmpfs: change tmpfs dirent zone into a malloc type > > > > It is 64 bytes. > > > > Right now malloc has only power-of-2 zones but I'm looking into > changing that. The allocator itself trivially extends to multiply of > 16, but stat collection needs reworking. Sums of consecutive powers of 2 also works well. That is, 16, 16 + 8, 32, 32 + 16, ... When I last looked I didn't see very many places that would benefit, at least outside of ZFS. Probably the main one is CAM CCBs, and that'll be helped by https://reviews.freebsd.org/D26844 .