From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4666CE90.6060205@domain.hid> Date: Wed, 06 Jun 2007 17:11:12 +0200 From: Jan Kiszka MIME-Version: 1.0 References: <7289437c0706060801i299d6881w31cc5ffee3444ace@domain.hid> In-Reply-To: <7289437c0706060801i299d6881w31cc5ffee3444ace@domain.hid> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig09D16E6AEB3950B676929824" Sender: jan.kiszka@domain.hid Subject: Re: [Xenomai-help] Cyclictest List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Perrine Martignoni Cc: xenomai-help This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig09D16E6AEB3950B676929824 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable Perrine Martignoni wrote: > Hello, >=20 > I launched the same application Cyclictest on a kernel Linux without > Xenomai > and a kernel Linux with Xenomai and I noticed that the result is differ= ent. >=20 > Here is the result with a kernel Linux without xenomai : >=20 >> cyclictest -t 10 -c 1 -i 10500 >=20 >=20 > T: 0 ( 732) P:99 I: 10500 C: 2291 Min: 41 Act: 2281 > Avg: 5075 > Max: 10224 >=20 > T: 1 ( 733) P:98 I: 11000 C: 2187 Min: 66 Act: 1312 > Avg: 5085 > Max: 10236 >=20 > T: 2 ( 734) P:97 I: 11500 C: 2092 Min: 91 Act: 842 > Avg: 5113 > Max: 10311 >=20 > T: 3 ( 735) P:96 I: 12000 C: 2004 Min: 106 Act: 1384 > Avg: 5134 > Max: 10140 >=20 > T: 4 ( 736) P:95 I: 12500 C: 1924 Min: 116 Act: 9873 > Avg: 5152 > Max: 10306 >=20 > T: 5 ( 737) P:94 I: 13000 C: 1850 Min: 136 Act: 415 > Avg: 5172 > Max: 10376 >=20 > T: 6 ( 738) P:93 I: 13500 C: 1782 Min: 136 Act: 3873 > Avg: 5180 > Max: 10411 >=20 > T: 7 ( 751) P:92 I: 14000 C: 1722 Min: 156 Act: 3559 > Avg: 5184 > Max: 10190 >=20 > T: 8 ( 752) P:91 I: 14500 C: 1663 Min: 140 Act: 8454 > Avg: 5216 > Max: 10310 >=20 > T: 9 ( 753) P:90 I: 15000 C: 1608 Min: 184 Act: 2485 > Avg: 5214 > Max: 10490 >=20 >=20 > And here is the result with a kernel Linux with xenomai : >> cyclictest -t 10 -c 1 -i 10000 >=20 >=20 > T: 0 ( 893) P:99 I: 10000 C: 1756 Min: 13407 Act: 13536 Avg: = =20 > 13452 > Max: 13693 >=20 > T: 1 ( 894) P:98 I: 10500 C: 1673 Min: 4955 Act: 7595 > Avg: 9767 > Max: 14727 >=20 > T: 2 ( 895) P:97 I: 11000 C: 1597 Min: 5461 Act: 7628 Avg: = =20 > 10047 > Max: 14793 >=20 > T: 3 ( 908) P:96 I: 11500 C: 1333 Min: 4987 Act: 5641 > Avg: 9808 > Max: 14779 >=20 > T: 4 ( 909) P:95 I: 12000 C: 1277 Min: 5478 Act: 11665 > Avg: 9588 > Max: 13864 >=20 > T: 5 ( 910) P:94 I: 12500 C: 1226 Min: 6016 Act: 11191 > Avg: 9859 > Max: 14135 >=20 > T: 6 ( 911) P:93 I: 13000 C: 1179 Min: 5526 Act: 9711 Avg: = =20 > 10130 > Max: 14901 >=20 > T: 7 ( 912) P:92 I: 13500 C: 1135 Min: 5061 Act: 14740 > Avg: 9896 > Max: 14852 >=20 > T: 8 ( 913) P:91 I: 14000 C: 1095 Min: 5549 Act: 7766 > Avg: 9669 > Max: 14198 >=20 > T: 9 ( 914) P:90 I: 14500 C: 1057 Min: 5107 Act: 11820 > Avg: 9940 > Max: 14984 >=20 >=20 > We can see that with Xenomai, the results are less good. > Is there an explication to this? Did you double-check that you were not testing Xenomai with the "vanilla" cyclictest, ie. the one without libpthread_rt dependencies...? See "ldd cyclictest" when in doubt. Jan --------------enig09D16E6AEB3950B676929824 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGZs6QniDOoMHTA+kRAmgJAJ0WztK/LEQYN5DbQXAvpWEqR7ZB6ACfYWuT ORcq0+Ik9y423CzOtDeIc2c= =3np+ -----END PGP SIGNATURE----- --------------enig09D16E6AEB3950B676929824--