X-Recipient: archive-cygwin@delorie.com X-SWARE-Spam-Status: No, hits=-2.7 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: sourceware.org Message-ID: <4E347D4B.3070409@gmail.com> Date: Sat, 30 Jul 2011 14:53:15 -0700 From: Daniel Colascione User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:5.0) Gecko/20110624 Thunderbird/5.0 MIME-Version: 1.0 To: cygwin@cygwin.com Subject: Re: Slow performance Win7/64 References: <20110729092602.GB19240@calimero.vinschen.de> <20110729130645.GA28223@ednor.casa.cgf.cx> <20110730210908.GA31747@ednor.casa.cgf.cx> In-Reply-To: <20110730210908.GA31747@ednor.casa.cgf.cx> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig8E7DB138BE0A9A552B18FAF8" X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com --------------enig8E7DB138BE0A9A552B18FAF8 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 7/30/11 2:09 PM, Christopher Faylor wrote: > I've checked in a change which uses QueueUserAPC to create threads like > the signal thread. As everyone has noted this seems to have a salutory > effect on the OP's test case. >=20 > I don't entirely understand why the code which already existed in Cygwin > to deal with the "slow performance on win7/64" didn't fix the problem but > using QueueUserAPC seems to solve the problem so I guess won't lose too > much sleep over this. I must be missing something: when exactly do we enter an alertable wait sta= te that would allow the thread-starting user APC to be delivered? AFAICS, all = waits seem to be of the non-alertable variety. --------------enig8E7DB138BE0A9A552B18FAF8 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (Darwin) iEYEARECAAYFAk40fU0ACgkQ17c2LVA10VsdxQCguIT6/mhGCiDt1hMyOxPFoAwQ mZcAoNJJ8HYe2E+FSKyi4R5kHWmTlMbr =OF8E -----END PGP SIGNATURE----- --------------enig8E7DB138BE0A9A552B18FAF8--