From owner-freebsd-hackers@freebsd.org Tue Nov 6 06:46:45 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 0DBC21104F49 for ; Tue, 6 Nov 2018 06:46:45 +0000 (UTC) (envelope-from vhaisman@gmail.com) Received: from mail-wr1-x429.google.com (mail-wr1-x429.google.com [IPv6:2a00:1450:4864:20::429]) (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 5E9FC8F234 for ; Tue, 6 Nov 2018 06:46:44 +0000 (UTC) (envelope-from vhaisman@gmail.com) Received: by mail-wr1-x429.google.com with SMTP id x12-v6so12113233wrw.8 for ; Mon, 05 Nov 2018 22:46:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:openpgp:autocrypt:message-id:date :user-agent:mime-version:in-reply-to; bh=K9vQMd2pg3ymto2BELLwVQPJpwOlH8XkxLyCdENn/8Y=; b=vRsWSAiHbtB2YSUVEGhNoRPyihd6znb4yDuyxhBFza0LdAe7ro1O9+1udfEG4S7KSQ OZcDBIspizIz1d1RRbgdEteG4/MNhwaaTC5AMVCQ+fENQUdj04HS1jUkJo2JFO0pB+KD 87N4dDGWI3MpWJ2h85PVCYyteHKLSCtEO2EIpqKkZ+zjsieFUqroYE2SJbbvO0PWobGe IgcvYT8KaGVrw+dUfQ5XK3rmnNAB+L9HvTl0g6HR/NrjWSFoEvR+294gRamoTKguvnxR jI5EOHl1SyNQkuIa/mt0j4ElbR/d+/eXSgu/6BndtUbhdaIOyqVo62hDLDW50YOc3k1y iDVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:openpgp:autocrypt :message-id:date:user-agent:mime-version:in-reply-to; bh=K9vQMd2pg3ymto2BELLwVQPJpwOlH8XkxLyCdENn/8Y=; b=W1Cc+X4IkOwFvHbcMJz/Iz+qttTyJ8PMm/IwJhzFdDSwntDvf9GB/JM0MRiVEuhNF0 DNOuUvAIlgEv2YgZIGoh3tjctQaWZfwuRK3+OfQE4Aq0X7SIn4D0v93nXvDlGCh5Qrot XQtr8jY/0b7vKlieCJZqkfVNOTFgJUOu6Han2JF0AExMVy05NYILONzj8SvV3TMxmnsj c6FGn+zHsblakfKhyZnrTGWEo01wK6F+xk1xa8Qo5pDce3mv1NnoxFZwupxc64IUK0of J71gDlCz5iy0brQrW44YfC5KRpzBxW8Mco1ZirDhFc/wJ4PmXpLaFN84V6QxNzBQVq55 8GTA== X-Gm-Message-State: AGRZ1gJcrRJUPkuTiaGL3wPsz5ejHU5ub+u1lV2pPyxTg60fS4Q26F1U +xMav3t0qZngkZDIhUEQV9M= X-Google-Smtp-Source: AJdET5ex+Udb1jwvtCeAg/yDGXR5Sss21rFxipueOOkRebvztPGfvUjf3vD6WLucb+lLoOM0YN7a6g== X-Received: by 2002:a5d:558a:: with SMTP id i10-v6mr8939647wrv.38.1541486802971; Mon, 05 Nov 2018 22:46:42 -0800 (PST) Received: from [192.168.0.122] (ip-86-49-239-100.net.upcbroadband.cz. [86.49.239.100]) by smtp.googlemail.com with ESMTPSA id v129-v6sm727407wme.45.2018.11.05.22.46.41 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 05 Nov 2018 22:46:41 -0800 (PST) Subject: Re: FreeBSD 11.x thread creation time is 9000+ microseconds on Intel Xeon Gold series CPU To: freebsd-hackers@freebsd.org References: From: =?UTF-8?Q?V=c3=a1clav_Haisman?= Openpgp: preference=signencrypt Autocrypt: addr=vhaisman@gmail.com; prefer-encrypt=mutual; keydata= mDMEWf3f1RYJKwYBBAHaRw8BAQdA+8IStMkkgNpf51nGCCVfGgaiznOp+xPcQtrfgfGLS9K0 JFbDoWNsYXYgSGFpc21hbiA8dmhhaXNtYW5AZ21haWwuY29tPoh8BBMWCAAkAhsDBQsJCAcC BhUICQoLAgQWAgMBAh4BAheABQJZ/emtAhkBAAoJEAS4nVHf5aIV+XwA/0ksz6qVucX60Aju 2+NHaNAvCwDZ9VCE6sXwTCVl/7T2AQD36hCK4CXDscIPhZ/j+EpoU1nQlhVkVXv3gvnqDCBz Cbg4BFn939USCisGAQQBl1UBBQEBB0BPTwtPhiWgvubjRmH8c2TCzUfRwqbCE79wJRJPMynx EwMBCAeIZwQYFggADwIbDAUCWf3h0gUJAeE1fQAKCRAEuJ1R3+WiFf1lAP9liLHDNkn5xu1q 2XA0ivSPhXSBVdyQht35zB5qascEbAEAphYqkkB6EDEtadOYSF4eaGYxUJE4GnHRuMxNY3JP eQa4MwRZ/eHgFgkrBgEEAdpHDwEBB0CGctdGA5BtgIA5eWP9n9cvWQIZGTTsIDA2vJZgWdBk mojHBBgWCAAPBQJZ/eHgAhsCBQkB4TOAAGoJEAS4nVHf5aIVXyAEGRYIAAYFAln94eAACgkQ qJdP1ET5MFwf2QEA2AKskTdBJKQRVhqdK7LFOrQ/68Hu9VPd1ivCyP47WPYBAKF5OlmwdJAR tvM31BLUsJkBx984WMCT1KDvoK219AYL8VEBAN7goxU95eCGtQ/QvLBGPhrSX7i7FgsR2OVr qjfzRZ9uAP4qHRvzeUjr1EDCg6C9OZc+IPZgcS06kM9UZQSCNgb5BQ== Message-ID: <7bb8463e-aa5d-bade-7ae7-6c612bae65f9@gmail.com> Date: Tue, 6 Nov 2018 07:46:33 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="OpV3w5i4nFj9vxHOOI8hRdlXMGOMjcdZo" X-Rspamd-Queue-Id: 5E9FC8F234 X-Spamd-Result: default: False [-6.67 / 200.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; FREEMAIL_FROM(0.00)[gmail.com]; HAS_ATTACHMENT(0.00)[]; TO_DN_NONE(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; MX_GOOD(-0.01)[cached: alt3.gmail-smtp-in.l.google.com]; SIGNED_PGP(-2.00)[]; NEURAL_HAM_SHORT(-0.86)[-0.859,0]; FROM_EQ_ENVFROM(0.00)[]; IP_SCORE(-0.70)[ipnet: 2a00:1450::/32(-1.96), asn: 15169(-1.47), country: US(-0.08)]; RCVD_TLS_LAST(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; MID_RHS_MATCH_FROM(0.00)[]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[gmail.com]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.20)[multipart/signed,multipart/mixed,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; RCVD_IN_DNSWL_NONE(0.00)[9.2.4.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.5.4.1.0.0.a.2.list.dnswl.org : 127.0.5.0] 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: Tue, 06 Nov 2018 06:46:45 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --OpV3w5i4nFj9vxHOOI8hRdlXMGOMjcdZo Content-Type: multipart/mixed; boundary="3GItp3KyG4VyP6g7Qej0IVnTrtbcvhE9C"; protected-headers="v1" From: =?UTF-8?Q?V=c3=a1clav_Haisman?= To: freebsd-hackers@freebsd.org Message-ID: <7bb8463e-aa5d-bade-7ae7-6c612bae65f9@gmail.com> Subject: Re: FreeBSD 11.x thread creation time is 9000+ microseconds on Intel Xeon Gold series CPU References: In-Reply-To: --3GItp3KyG4VyP6g7Qej0IVnTrtbcvhE9C Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: quoted-printable On 06. 11. 18 5:01, Steevan Rodrigues wrote: > Hi , > I am seeing a FreeBSD 11.x OS poor performance issue . > CPU is Intel(R) Xeon(R) Gold 5115 CPU @ 2.40GHz ( dual socket CPU with = 10 > cores per socket ) >=20 > I have attached a simple program which creates thread and computes time= There is no attachment. The mailing list software probably stripped that.= > taken to create this thread. On this CPU with FreeBSD 11.x OS it takes = 9000 > to 15000 micro seconds ( us) to create > just one thread. >=20 > On other platforms this thread creation time is usually 20 to 30 us onl= y. > Any idea why it takes so much more time with FreeBSD 11.x ? > Is there any processor specific tuning that needs to be done ? >=20 > Thanks, > Steevan > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.o= rg" >=20 --=20 VH --3GItp3KyG4VyP6g7Qej0IVnTrtbcvhE9C-- --OpV3w5i4nFj9vxHOOI8hRdlXMGOMjcdZo Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEARYKAB0WIQTkBikvfQi7sAhGExQEuJ1R3+WiFQUCW+E40AAKCRAEuJ1R3+Wi FaHXAP4gph0xiOdYnlG+wTcVhtpWrtWDOPMAz45PE9cUKYu12wEA/eFShbTvIfW/ qA7am8DBI5ADU2xmLa6jQyc88V6M4Qk= =bAAc -----END PGP SIGNATURE----- --OpV3w5i4nFj9vxHOOI8hRdlXMGOMjcdZo--