From owner-freebsd-hackers@freebsd.org Fri Nov 23 16:00:47 2018 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 05D26114A863 for ; Fri, 23 Nov 2018 16:00:47 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: from mail-io1-xd36.google.com (mail-io1-xd36.google.com [IPv6:2607:f8b0:4864:20::d36]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 5A3B069AFF for ; Fri, 23 Nov 2018 16:00:46 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: by mail-io1-xd36.google.com with SMTP id g8so9094859iop.10 for ; Fri, 23 Nov 2018 08:00:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=VI9V+Kg0Nhh0KGNaJL3LZ2Up55kxW0boBPrQ6xdBhDA=; b=rBi+kJ9HRl0p/WdQOfd68Hqq5R3WJ3tQn4EqPlbxJbbrWooeAcE0w3+vfv2Rp88DA4 1IgevB0I1WL3Kj2L06XbMHShH+vuXsCIlS1bsVWM6pSsWe5ANSuGXob2XMO0czZVuYwh 770bDme4IpsqCcANbGn1ZfvkNvvJRTad3TODYnzUtlXsE4zIn1yIN1TrOfWd3ml6Dw1i V9scg636aRvZP662rpwbkrFOjPrQ/Hr/1u47CcntxxPw0O2Y+NSKCkccDIuwXqWZ1QGZ dH03OcNW7JR4e4hiEo9iZlf9Yhphl2u/bAKrvc5GEJxroCg3UBXAvy9A0YPHG6sN6Rd9 HG6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=VI9V+Kg0Nhh0KGNaJL3LZ2Up55kxW0boBPrQ6xdBhDA=; b=R4TX5d94Rp4RCSrE3QP4XXT8yFACt11FWhwUk0k1/i1nnMvErrBmJiJ/PhjW1A8309 GwvVg4ZcDH8yLSeJ4fHHK9Z6broK0BAnPcK4KvLkTPjzDIQIvtbiAUsYvIvEReGMSylf yz716FapQFkhO5wfQU51DcnbdykVkvN0M0lmkeUj2c6kd4R8OcuEZaxf++y+9ljCXxGZ n0ZCMrxgCWOdYgFLofBtmwlqY9hE/fdSgSxIKA9FuBDSJLjVRxlS5o4CZJ9kagmKnEXD eYyOFEbyS2R09Cbrst46CAFngv/CTRGHoPwzRj10opMF3bjoBuuaxfZSJiUE4epX+Qs7 oLVg== X-Gm-Message-State: AA+aEWb/aBw4dXSz7TZFcurYOQXY5jhIJocEwH5/mqmo0h/jauFpyDqN I4VwdISFAo3E03AEMKa7HCknNzFppjWfDWVaX0Y7ky5R X-Google-Smtp-Source: AFSGD/U/iEjucXfpa1RlrxeCA0cs9AjS3/9JPRsldzSF6UYBupsLTKfMk+X9wH1XSDIIt8kP2cwG6lpiwIfdwiBCyXI= X-Received: by 2002:a5e:d808:: with SMTP id l8mr2002229iok.299.1542988845320; Fri, 23 Nov 2018 08:00:45 -0800 (PST) MIME-Version: 1.0 References: <7699de57-d903-1d61-ee42-062ed312b20d@grosbein.net> <6975ff4e-6383-e52c-3a11-d35b95cca114@grosbein.net> <20181123104205.GZ59358@e.0x20.net> <5BF7DD8F.1040007@grosbein.net> In-Reply-To: <5BF7DD8F.1040007@grosbein.net> From: Warner Losh Date: Fri, 23 Nov 2018 09:00:33 -0700 Message-ID: Subject: Re: TRIM utility To: Eugene Grosbein Cc: Lars Engels , FreeBSD Hackers X-Rspamd-Queue-Id: 5A3B069AFF X-Spamd-Result: default: False [-3.68 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.99)[-0.994,0]; R_DKIM_ALLOW(-0.20)[bsdimp-com.20150623.gappssmtp.com]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; NEURAL_HAM_LONG(-0.99)[-0.988,0]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; DMARC_NA(0.00)[bsdimp.com]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; MX_GOOD(-0.01)[cached: ALT1.aspmx.l.google.com]; DKIM_TRACE(0.00)[bsdimp-com.20150623.gappssmtp.com:+]; RCVD_IN_DNSWL_NONE(0.00)[6.3.d.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; NEURAL_HAM_SHORT(-0.96)[-0.960,0]; R_SPF_NA(0.00)[]; FORGED_SENDER(0.30)[imp@bsdimp.com,wlosh@bsdimp.com]; RCVD_TLS_LAST(0.00)[]; IP_SCORE(-0.73)[ipnet: 2607:f8b0::/32(-2.06), asn: 15169(-1.49), country: US(-0.09)]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; FROM_NEQ_ENVFROM(0.00)[imp@bsdimp.com,wlosh@bsdimp.com]; RCVD_COUNT_TWO(0.00)[2] X-Rspamd-Server: mx1.freebsd.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Nov 2018 16:00:47 -0000 On Fri, Nov 23, 2018, 3:59 AM Eugene Grosbein On 23.11.2018 17:42, Lars Engels wrote: > > > Would "hdtrim" or "ssdtrim" be better names? > > Just "trim" sounds better to me :-) > Trim applies to more than add. And never to hdd. Virtualization uses it. SD cards use it. NVMe drives use it (I'd argue the aren't really SSDs but something else). Warner >