From nobody Wed Feb 22 21:31:00 2023 X-Original-To: freebsd-fs@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 4PMTqC0D9zz3sDgJ for ; Wed, 22 Feb 2023 21:31:03 +0000 (UTC) (envelope-from SRS0=ZcGF=6S=quip.cz=000.fbsd@elsa.codelab.cz) Received: from elsa.codelab.cz (elsa.codelab.cz [94.124.105.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4PMTqB6SjHz3Q4p; Wed, 22 Feb 2023 21:31:02 +0000 (UTC) (envelope-from SRS0=ZcGF=6S=quip.cz=000.fbsd@elsa.codelab.cz) Authentication-Results: mx1.freebsd.org; none Received: from elsa.codelab.cz (localhost [127.0.0.1]) by elsa.codelab.cz (Postfix) with ESMTP id 47AD6D7891; Wed, 22 Feb 2023 22:31:01 +0100 (CET) Received: from [192.168.145.50] (ip-89-177-27-225.bb.vodafone.cz [89.177.27.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by elsa.codelab.cz (Postfix) with ESMTPSA id 9295FD788C; Wed, 22 Feb 2023 22:31:00 +0100 (CET) Message-ID: <78c78aec-a34b-f188-ef96-8ced9a1eda35@quip.cz> Date: Wed, 22 Feb 2023 22:31:00 +0100 List-Id: Filesystems List-Archive: https://lists.freebsd.org/archives/freebsd-fs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-fs@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 Subject: Re: speeding up zfs send | recv (update) Content-Language: cs-Cestina To: mike tancsa , Alan Somers Cc: freebsd-fs References: <866d6937-a4e8-bec3-d61b-07df3065fca9@sentex.net> <1031e2b0-b245-1dc6-a499-8f4da3796543@quip.cz> <46455168-d7f1-6ca9-ad2f-9bcd3359e0f3@sentex.net> From: Miroslav Lachman <000.fbsd@quip.cz> In-Reply-To: <46455168-d7f1-6ca9-ad2f-9bcd3359e0f3@sentex.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 4PMTqB6SjHz3Q4p X-Spamd-Bar: ---- X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:42000, ipnet:94.124.104.0/21, country:CZ] X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-ThisMailContainsUnwantedMimeParts: N On 22/02/2023 22:08, mike tancsa wrote: > On 2/22/2023 4:03 PM, Miroslav Lachman wrote: >> Interresting numbers. I think I am the only one who get best speed >> with chacha20-poly1305@openssh.com >> >> >> It seems the speed of SSH is limited by single core performance which >> is very poor on this machine (Intel(R) Pentium(R) Dual  CPU E2160). >> Even if CPU has 50% idle, ssh runs on 99.8% of single core. > > The CPU I have has > aesni0: on motherboard > > which probably helps. That explains it aesni0: No AES or SHA support. >> I know there were some HPN patches to ssh, beside that is there any >> option I can try to use less CPU? >> >> I will play with cpuset to pin ssh on one core and everything else on >> the other core. > > It looks like you are running into a CPU bottleneck TBH Yes. Pinning on cores with cpuset helps a bit (about +3MiB/s) but without some tweaks on ssh I will not gain more speed :( Thank you for your help! Miroslav Lachman