-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 03/24/2015 03:40 PM, Jeff Mahoney wrote:
On 3/24/15 10:21 AM, Jiri Slaby wrote:
On 03/24/2015, 02:20 PM, David Sterba wrote:
Hi,
currently the scsi-mq is set to Y, since 3.18-rc1 merge. The option enables a feature that makes advantage of enterprise-class storage. It's known not to perform well on slower devices [1] and lacks scheduler support.
We'll set the option to N in our stable kernels.
Ok, but set the same on master too. The two kernels should be identical at every .0 release.
No, please don't. I'm in the middle of writing a longer reply to this because I think it's the wrong approach.
Same here. If scsi-mq gives a degraded performance we should disable it on a per-driver basis, leaving the 'high-end' HBA free to profit from this. I'll gladly do a patch for this ... Cheers, Hannes - -- Dr. Hannes Reinecke zSeries & Storage hare@suse.de +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBAgAGBQJVEXf4AAoJEGz4yi9OyKjPHLgP/j3FEhGPSeFfJjpmzuqkkEj8 fqVl2GGeZkd7SzZci2Mxi4FLJU9/HUpJ+2vc7DA9ipI46d+Jlu1DX0gouDnfhQZJ UGWpJLfUm5tDYQZ+W1vXsZSBsHUkNlomSb0peN/K2yfLaesGEJ5oaGJVtCvKgchr BZG/rPICp9lDKih9rY0Of2RKhvAIoMQ1njkH8ePKwSQqBTv43gJ4f50IQ9nbZPBk D6oQu6IXklABPEkZEyRCt1pSBrHGapVcBnu6iquUYAcrcFpVi5+yBdJzw3cwp6ef lG964X/vSfGIs+Jkm17uNss4KJu5Vwur1kDirmO6qLWJBH4cgt4fyP2RSUMrqbaZ 42YhjBL1b/riJ4NqMzrKBsSIYwy0KBkUWHRT5HFAcaV7xcO167eKtBwn8SI9z3sl PTP2VetHStSBhyjErYL8hEZqokWs8bVNAxd9xQrbZ5jLv7yOtJS/T2pBAAR0BBGS IQL0cv80lXKgPfLrJNpalbwI/fPxw6gR2hUGhLq/iVbUshVkSLOCk9+kGmuReL3i A/ggpPcg2NmvPrHjhIAH20lHcfWgSc8+YRKYPil7MgYA6lhB6o4+XwejLygOwoQP e2Rpi44PcNpOr9x+k/G7/f/sfUBnVeCjbPuDcc+cfec93VQoZLUaJZ6OxnmImBIZ Bw6NaEqZFC4cWs5KM37h =L90k -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org