From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Fri, 8 Jun 2012 19:56:38 +0400 From: "Dmitry V. Levin" To: ALT Devel discussion list Message-ID: <20120608155638.GA5809@altlinux.org> Mail-Followup-To: ALT Devel discussion list References: <20120604211117.GA10184@altlinux.org> <20120604223046.GA10007@shutemov.name> <20120605002047.GA11877@altlinux.org> <20120605060622.GA11312@shutemov.name> <20120605090827.GB16122@altlinux.org> <20120605123719.GA12996@shutemov.name> <20120605124603.GA19483@altlinux.org> <20120605131035.GA13142@shutemov.name> <20120606013127.GA29780@altlinux.org> <20120608124629.GA5947@shutemov.name> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="sm4nu43k4a2Rpi4c" Content-Disposition: inline In-Reply-To: <20120608124629.GA5947@shutemov.name> X-fingerprint: FE4C 93AB E19A 2E4C CB5D 3E4E 7CAB E6AC 9E35 361E Subject: Re: [devel] [partially solved] Q: exit_group slowness X-BeenThere: devel@lists.altlinux.org X-Mailman-Version: 2.1.12 Precedence: list Reply-To: ALT Linux Team development discussions List-Id: ALT Linux Team development discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Jun 2012 15:56:38 -0000 Archived-At: List-Archive: List-Post: --sm4nu43k4a2Rpi4c Content-Type: text/plain; charset=koi8-r Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jun 08, 2012 at 03:46:29PM +0300, Kirill A. Shutemov wrote: > On Wed, Jun 06, 2012 at 05:31:27AM +0400, Dmitry V. Levin wrote: > > On Tue, Jun 05, 2012 at 04:10:35PM +0300, Kirill A. Shutemov wrote: > > > On Tue, Jun 05, 2012 at 04:46:03PM +0400, Dmitry V. Levin wrote: > > > > On Tue, Jun 05, 2012 at 03:37:19PM +0300, Kirill A. Shutemov wrote: > > > > > On Tue, Jun 05, 2012 at 01:08:28PM +0400, Dmitry V. Levin wrote: > > > > > > On Tue, Jun 05, 2012 at 09:06:22AM +0300, Kirill A. Shutemov wr= ote: > > > > > > > =F0=CF=C8=CF=D6=C5 =D7=CF=D4 =CE=C1 =DC=D4=CF: > > > > > > >=20 > > > > > > > http://lkml.org/lkml/2012/6/3/34 > > > > > > >=20 > > > > > > > =EE=C9=D6=C5 =D0=CF =D4=D2=DC=C4=D5 =F0=CF=CC =D0=D2=C5=C4=CC= =C1=C7=C1=C5=D4 =D7=CF=DA=CD=CF=D6=CE=CF=C5 =D2=C5=DB=C5=CE=C9=C5. > > > > > >=20 > > > > > > =F3=D0=C1=D3=C9=C2=CF, =CF=D4=CB=C1=D4 =CE=C1 3.2.14-std-def-al= t1 =D2=C1=C4=C9=CB=C1=CC=D8=CE=CF =D5=CC=D5=DE=DB=C9=CC =CB=C1=D2=D4=C9=CE= =CB=D5: > > > > > > # env -i strace -r -eprocess /usr/bin/unshare -i /bin/true > > > > > > 0.000000 execve("/usr/bin/unshare", ["/usr/bin/unshare", "= -i", "/bin/true"], [/* 0 vars */]) =3D 0 > > > > > > 0.001357 arch_prctl(ARCH_SET_FS, 0x7f49add73700) =3D 0 > > > > > > 0.000457 unshare(CLONE_NEWIPC) =3D 0 > > > > > > 0.000200 execve("/bin/true", ["/bin/true"], [/* 0 vars */]= ) =3D 0 > > > > > > 0.000350 exit_group(0) =3D ? > > > > > > 0.156461 +++ exited with 0 +++ > > > > > >=20 > > > > > > =E8=CF=D4=D1 =C4=CF =C9=C4=C5=C1=CC=C1 =C5=DD=C5 =C4=C1=CC=C5= =CB=CF: > > > > > > # env -i strace -r /bin/true > > > > > > 0.000000 execve("/bin/true", ["/bin/true"], [/* 0 vars */]= ) =3D 0 > > > > > > 0.000628 exit_group(0) =3D ? > > > > > > 0.000329 +++ exited with 0 +++ > > > > >=20 > > > > > exit_group() =C4=CF=D2=CF=C7=CF=CA =D4=CF=CC=D8=CB=CF =C4=CC=D1 = =D0=CF=D3=CC=C5=C4=CE=C5=C7=CF =D0=D2=CF=C3=C5=D3=D3=C1 =D7 namespace, =D4= =C1=CB? > > > >=20 > > > > =E4=C1, =CB=CF=CE=C5=DE=CE=CF. > > > >=20 > > > > > =E4=D5=CD=C1=C0, =DC=D4=CF =C3=C5=CE=C1 =CB=CF=D4=CF=D2=D5=C0 =CD= =CF=D6=CE=CF =DA=C1=D0=CC=C1=D4=C9=D4=D8. > > > >=20 > > > > 0.15 =D3=C5=CB=D5=CE=C4=D9 =DC=D4=CF =CF=DE=C5=CE=D8 =C4=CF=CC=C7= =CF, =D4=CF =D6=C5 =D3=C1=CD=CF=C5 =D1=C4=D2=CF =CE=C1 =C2=CF=CC=C5=C5 =D0= =D2=CF=D3=D4=D9=C8 =D3=C5=D2=D7=C5=D2=C1=C8 > > > > =DA=C1=D7=C5=D2=DB=C1=C5=D4 =D0=CF=D3=CC=C5=C4=CE=C9=CA =D0=D2=CF= =C3=C5=D3=D3 =D7 namespace =CE=C1 1-2 =D0=CF=D2=D1=C4=CB=C1 =C2=D9=D3=D4=D2= =C5=C5. =F4=C1=CB =DE=D4=CF > > > > =D7=CF=D0=D2=CF=D3, =DE=D4=CF =CE=C5 =D4=C1=CB =C9 =CB=C1=CB =D3 = =DC=D4=C9=CD =C2=CF=D2=CF=D4=D8=D3=D1, =D0=CF=CB=C1 =CF=D3=D4=C1=C5=D4=D3= =D1. > > >=20 > > > RCU_FAST_NO_HZ =CE=C5 =D0=D2=C5=C4=CE=C1=DA=CE=C1=DE=C5=CE=C1 =C4=CC= =D1 =C2=CF=CC=D8=DB=C9=C8 =CD=C1=DB=C9=CE. =EF =DE=A3=CD =D7 =D1=D7=CE=CF= =CD =D7=C9=C4=C5 > > > =CE=C1=D0=C9=D3=C1=CE=CF =D7 =CF=D0=C9=D3=C1=CE=C9=C9 =CF=D0=C3=C9=C9= . =F4=C1=CB =DE=D4=CF CONFIG_RCU_FAST_NO_HZ=3Dy =C2=D9=CC=CF =CF=DB=C9=C2= =CB=CF=CA > > > =C4=CC=D1 =C4=C9=D3=D4=D2=C9=C2=D5=D4=C9=D7=CE=CF=C7=CF =D1=C4=D2=C1. > > >=20 > > > =EB=CF=C7=C4=C1 =CD=CF=D1 =C2=CF=CC=D8=DB=C1=D1 =CD=C1=DB=C9=CE=CB=C1= (40 =D1=C4=C5=D2 + ht) =CF=D3=D7=CF=C2=CF=C4=C9=D4=D3=D1 =D1 =D0=CF=D0=D2= =CF=C2=D5=C0 > > > =D0=CF=DC=CB=D3=D0=C5=D2=C5=CD=C5=CE=D4=C9=D2=CF=D7=C1=D4=D8 =D3 =DC= =D4=C9=CD =CE=C5=CD=CE=CF=C7=CF. =E5=D3=D4=D8 =D0=CF=C4=CF=DA=D2=C5=CE=C9= =C5, =DE=D4=CF =CF=D4=CD=CF=CE=C9=D2=CF=D7=C1=CE=C9=C5 > > > =C6=C1=CA=CC=CF=D7=CF=CA =D3=C9=D3=D4=C5=CD=D9 (=D7=CE=D5=D4=D2=C9=D1= =C4=C5=D2=CE=CF=CA, =D7 =D3=CC=D5=DE=C1=C5 CLONE_NEWIPC) =D0=CC=CF=C8=CF > > > =CD=C1=D3=DB=D4=C1=C2=C9=D2=D5=C5=D4=D3=D1 =CE=C1 =C2=CF=CC=D8=DB=CF= =C5 =CB=CF=CC=C9=DE=C5=D3=D4=D7=CF =D0=D2=CF=C3=C5=D3=D3=CF=D2=CF=D7 =C4=C1= =D6=C5 =C2=C5=DA RCU_FAST_NO_HZ. > >=20 > > =E4=CC=D1 =D3=D0=D2=C1=D7=CB=C9: =CE=C1 =D4=CF=CA =D6=C5 =CD=C1=DB=C9= =CE=CB=C5 (=C7=C4=C5 "rpm --eval %__nprocs" =D0=CF=CB=C1=DA=D9=D7=C1=C5=D4 = 32) =D3 > > 3.3.8-std-def-alt1 (=D3 =CF=D4=CB=CC=C0=DE=C5=CE=CE=D9=CD CONFIG_RCU_FA= ST_NO_HZ) =D7=D2=C5=CD=D1 =DA=C1=D7=C5=D2=DB=C5=CE=C9=D1 > > "unshare -i /bin/true" =D5=CD=C5=CE=D8=DB=C9=CC=CF=D3=D8 =D0=D2=C9=CD= =C5=D2=CE=CF =D7 =D0=CF=CC=D4=CF=D2=C1 =D2=C1=DA=C1 =D0=CF =D3=D2=C1=D7=CE= =C5=CE=C9=C0 =D3 > > 3.2.14-std-def-alt1 (=D3 0.15 =C4=CF 0.10 =D3=C5=CB=D5=CE=C4=D9). >=20 > =E4=C9=CD=C1, =CD=CF=D6=C5=DB=D8 =D0=D2=CF=D7=C5=D2=C9=D4=D8 =D0=CF=CD=CF= =D6=C5=D4 =CC=C9 =D0=C1=D4=DE=C9=CB, =D0=D2=C5=D6=C4=C5 =DE=C5=CD =D1 =D0= =CF=CB=C1=D6=D5 =C5=C7=CF > =C1=D0=D3=D4=D2=C9=CD=D5: =F3=D0=C1=D3=C9=C2=CF, =D3 =DC=D4=C9=CD =D0=C1=D4=DE=C5=CD "unshare -i /bin= /true" =CF=D4=D2=C1=C2=C1=D4=D9=D7=C1=C5=D4 =D2=CF=D7=CE=CF =D7 3 =D2=C1=DA= =C1 =C2=D9=D3=D4=D2=C5=C5, =DE=C5=CD =C2=C5=DA =DC=D4=CF=C7=CF =D0=C1=D4=DE=C1. --=20 ldv --sm4nu43k4a2Rpi4c Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk/SILYACgkQfKvmrJ41Nh5RtACfWV2xoNUDAwy9FzQzNKydW/Ns WSEAmQHL3EzpxLTb/jdHCvWWOvyQLD7N =EUfE -----END PGP SIGNATURE----- --sm4nu43k4a2Rpi4c--