From owner-freebsd-hackers@freebsd.org Sat Dec 8 12:48:57 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 F07B1131433D; Sat, 8 Dec 2018 12:48:56 +0000 (UTC) (envelope-from waitman@waitman.net) Received: from mail4.protonmail.ch (mail4.protonmail.ch [185.70.40.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.protonmail.ch", Issuer "QuoVadis Global SSL ICA G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id C72657BAEF; Sat, 8 Dec 2018 12:48:55 +0000 (UTC) (envelope-from waitman@waitman.net) Date: Sat, 08 Dec 2018 12:48:38 +0000 To: "lev@FreeBSD.org" From: Waitman Gobble Cc: "freebsd-hackers@freebsd.org" , "freebsd-current@freebsd.org" Reply-To: Waitman Gobble Subject: Re: Painfully slow compilation (read: "make buildworld buildkernel") on not-so-weak system Message-ID: In-Reply-To: <135752149.20181208151859@serebryakov.spb.ru> References: <902729965.20181208141303@serebryakov.spb.ru> <135752149.20181208151859@serebryakov.spb.ru> Feedback-ID: a9EiCCViSiSHQ6Bx5OnM7zSE3j9mdPjjMltovBgA7v_vv_C4nKI9vbMXvmk_xW33cGmibh2zGAa2Co0Llrno4A==:Ext:ProtonMail MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-1.2 required=7.0 tests=ALL_TRUSTED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on mail.protonmail.ch X-Rspamd-Queue-Id: C72657BAEF X-Spamd-Result: default: False [-5.62 / 15.00]; ARC_NA(0.00)[]; HAS_REPLYTO(0.00)[waitman@waitman.net]; R_DKIM_ALLOW(-0.20)[waitman.net]; REPLYTO_EQ_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; R_SPF_ALLOW(-0.20)[+ip4:185.70.40.0/24]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; MX_GOOD(-0.01)[mail.protonmail.ch]; DKIM_TRACE(0.00)[waitman.net:+]; DMARC_POLICY_ALLOW(-0.50)[waitman.net,reject]; NEURAL_HAM_SHORT(-0.77)[-0.773,0]; TO_DN_EQ_ADDR_ALL(0.00)[]; RCVD_COUNT_ZERO(0.00)[0]; RCVD_IN_DNSWL_LOW(-0.10)[27.40.70.185.list.dnswl.org : 127.0.5.1]; FROM_EQ_ENVFROM(0.00)[]; IP_SCORE(-1.74)[ipnet: 185.70.40.0/24(-4.77), asn: 19905(-3.82), country: US(-0.09)]; ASN(0.00)[asn:19905, ipnet:185.70.40.0/24, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[] X-Rspamd-Server: mx1.freebsd.org 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: Sat, 08 Dec 2018 12:48:57 -0000 =E2=80=90=E2=80=90=E2=80=90=E2=80=90=E2=80=90=E2=80=90=E2=80=90 Original Me= ssage =E2=80=90=E2=80=90=E2=80=90=E2=80=90=E2=80=90=E2=80=90=E2=80=90 On Saturday, December 8, 2018 8:18 AM, Lev Serebryakov wr= ote: > Hello Lev, > > Saturday, December 8, 2018, 2:13:03 PM, you wrote: > > > Another strange thing I noticed: when system is in such state, "top -SH= " > > shows that sometimes very low-profile processes, like clock software > > interrupt (!) could consume large amount of CPU for short periods time.= When > > system is idle there never will be "intr{swi4: clock (0)}" consuming 55= % CPU > > for one "frame" or sshd, or screen itself. > > Like this. This system doesn't have any significant network traffic now = =E2=80=94 > only one ssh connection, which is used as console. And 62.3% for network > card. WTF?! > > PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND > 20128 root 101 0 104M 74M CPU1 1 0:31 100.00% cc > 0 root -76 - 0 4608K - 2 53:25 62.23% kernel{if_config_tqg_0} > 11 root -60 - 0 240K WAIT 0 25:45 24.89% intr{swi4: clock (0)} > 9 root -8 - 0 160K tx->tx 0 7:38 24.88% zfskern{txg_thread_enter} > > 995 root 24 0 17M 7676K select 1 2:20 12.44% sendmail > 13791 root 24 0 24M 15M select 0 0:04 12.44% make > > > -------------------------------------------------------------------------= -------------------------------- > > Best regards, > Lev mailto:lev@FreeBSD.org > > freebsd-hackers@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org= " I had super slow build for r341270, but I thought it was because I accident= ally left WITNESS option set. I killed it after about 10 hours, booted to single user and rebuilt kernel = there. Waitman