From nobody Sat Jan 29 20:43:13 2022 X-Original-To: freebsd-arm@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 5AE10197D7A6 for ; Sat, 29 Jan 2022 20:43:19 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Received: from www.zefox.net (www.zefox.net [50.1.20.27]) (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 (2048 bits) client-digest SHA256) (Client CN "www.zefox.com", Issuer "www.zefox.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4JmR9f2SBSz3nRp for ; Sat, 29 Jan 2022 20:43:18 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Received: from www.zefox.net (localhost [127.0.0.1]) by www.zefox.net (8.16.1/8.15.2) with ESMTPS id 20TKhEfw063054 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Sat, 29 Jan 2022 12:43:14 -0800 (PST) (envelope-from fbsd@www.zefox.net) Received: (from fbsd@localhost) by www.zefox.net (8.16.1/8.15.2/Submit) id 20TKhDKX063053; Sat, 29 Jan 2022 12:43:13 -0800 (PST) (envelope-from fbsd) Date: Sat, 29 Jan 2022 12:43:13 -0800 From: bob prohaska To: freebsd-arm@freebsd.org Cc: bob prohaska Subject: Should a UFS machine have an ARC entry in top? Message-ID: <20220129204313.GA63030@www.zefox.net> References: <20220128182701.GA57479@www.zefox.net> List-Id: Porting FreeBSD to ARM processors List-Archive: https://lists.freebsd.org/archives/freebsd-arm List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-arm@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220128182701.GA57479@www.zefox.net> X-Rspamd-Queue-Id: 4JmR9f2SBSz3nRp X-Spamd-Bar: ++ Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of fbsd@www.zefox.net has no SPF policy when checking 50.1.20.27) smtp.mailfrom=fbsd@www.zefox.net X-Spamd-Result: default: False [2.01 / 15.00]; RCVD_TLS_ALL(0.00)[]; ARC_NA(0.00)[]; WWW_DOT_DOMAIN(0.50)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; NEURAL_HAM_LONG(-0.88)[-0.884]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[zefox.net]; AUTH_NA(1.00)[]; NEURAL_SPAM_MEDIUM(1.00)[0.996]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_HAM_SHORT(-1.00)[-1.000]; RCPT_COUNT_TWO(0.00)[2]; MLMMJ_DEST(0.00)[freebsd-arm]; R_SPF_NA(0.00)[no SPF record]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:7065, ipnet:50.1.16.0/20, country:US]; SUBJECT_ENDS_QUESTION(1.00)[]; MID_RHS_WWW(0.50)[]; RCVD_COUNT_TWO(0.00)[2] X-ThisMailContainsUnwantedMimeParts: N Status: O Content-Length: 418 Lines: 15 I just noticed a new line in top's output on a Pi3 running 13/stable: ARC: 3072B Total, 2048B MRU, 1024B Header 2048B Compressed, 20K Uncompressed, 10.00:1 Ratio This is on a Pi3 with a UFS filesystem, near as I can tell ARC is something to do with ZFS; have I got something misconfigured? The system was last updated in mid January. Thanks for reading, apologies if it's a dumb question! bob prohaska >