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Thu, 23 Mar 2023 19:39:05 GMT Received: from smtpav02.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7EFD75805B; Thu, 23 Mar 2023 19:39:05 +0000 (GMT) Received: from smtpav02.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5F3E558059; Thu, 23 Mar 2023 19:39:05 +0000 (GMT) Received: from localhost (unknown [9.41.178.242]) by smtpav02.wdc07v.mail.ibm.com (Postfix) with ESMTP; Thu, 23 Mar 2023 19:39:05 +0000 (GMT) From: Nathan Lynch To: Andrew Donnellan , Michael Ellerman , Nicholas Piggin , Christophe Leroy Subject: Re: [PATCH 8/8] powerpc/rtas: consume retry statuses in sys_rtas() In-Reply-To: <35f3e3c9486fe2a841bbf590349e8386c1bba390.camel@linux.ibm.com> References: <20230220-rtas-queue-for-6-4-v1-0-010e4416f13f@linux.ibm.com> <20230220-rtas-queue-for-6-4-v1-8-010e4416f13f@linux.ibm.com> <35f3e3c9486fe2a841bbf590349e8386c1bba390.camel@linux.ibm.com> Date: Thu, 23 Mar 2023 14:39:05 -0500 Message-ID: <874jqb6yw6.fsf@linux.ibm.com> Content-Type: text/plain; charset=utf-8 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 8m-HHAep1IT7bTpXuT1xkqg8mJ1Lep2d X-Proofpoint-GUID: J7ICT0tdXM2aVmblsLWjqtyOJdjjorHX Content-Transfer-Encoding: quoted-printable X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-23_13,2023-03-23_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 mlxlogscore=925 priorityscore=1501 bulkscore=0 adultscore=0 spamscore=0 suspectscore=0 phishscore=0 clxscore=1015 malwarescore=0 mlxscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303150002 definitions=main-2303230139 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Tyrel Datwyler , Scott Cheloha , Laurent Dufour , linuxppc-dev@lists.ozlabs.org, Nick Child Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Andrew Donnellan writes: > On Mon, 2023-03-06 at 15:33 -0600, Nathan Lynch via B4 Relay wrote: >> * We can expect performance improvements for existing sys_rtas() >> =C2=A0 users, not only because of overall reduction in the number of >> system >> =C2=A0 calls issued, but also due to the better handling of -2/990x in t= he >> =C2=A0 kernel. For example, librtas still sleeps for 1ms on -2, which is >> =C2=A0 completely unnecessary. > > Would be good to see this fixed on the librtas side. Filed an issue: https://github.com/ibm-power-utilities/librtas/issues/30