From: Hal Rosenstock <hal-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
To: Gandalf Corvotempesta
<gandalf.corvotempesta-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Rupert Dance <rsdance-rzwDkyJvnYokmLvzuZlaBw@public.gmane.org>,
"Hefty,
Sean" <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: Slow performance with librspreload.so
Date: Tue, 03 Sep 2013 08:06:53 -0400 [thread overview]
Message-ID: <5225D0DD.7060803@dev.mellanox.co.il> (raw)
In-Reply-To: <CAJH6TXiOToa2-EOj6Hz-rkVHt3tCSh4jnLbKZs69GhT7dFeH0A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On 8/31/2013 3:51 PM, Gandalf Corvotempesta wrote:
> By the way, increasing MTU to 4096 will give me more performance?
With mthca, due to quirk, optimal performance is achieved at 1K MTU.
OpenSM can reduce the MTU in returned PathRecords to 1K when one end of
the path is mthca and actual path MTU is > 1K. This is controlled by
enable_quirks config parameter which defaults to FALSE (don't do this).
-- Hal
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next prev parent reply other threads:[~2013-09-03 12:06 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-28 15:20 Slow performance with librspreload.so Gandalf Corvotempesta
[not found] ` <CAJH6TXgf2LeMH+1L290w_KZ5tTN7NWpQxntF58Z506G3h_qKVw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-08-28 15:50 ` Hefty, Sean
[not found] ` <1828884A29C6694DAF28B7E6B8A8237388CA937E-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2013-08-28 16:19 ` Gandalf Corvotempesta
[not found] ` <CAJH6TXjEx+41G_7wvQybMXzb60tu-ha2d2Bu_J_erNDPJRbQFw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-08-28 17:16 ` Hefty, Sean
[not found] ` <1828884A29C6694DAF28B7E6B8A8237388CA96AD-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2013-08-28 18:24 ` Gandalf Corvotempesta
[not found] ` <CAJH6TXhAuSDytS5O1cJMg3iatq+STkwhPUG2zmexJ5tmt3Foqg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-08-28 19:20 ` Hefty, Sean
2013-08-28 20:05 ` Hefty, Sean
[not found] ` <CAJH6TXgA0ghKX1P8UUAMFKY9o0xBJ0j4-kFa_M4a4ecdzoD0HA@mail.gmail.com>
[not found] ` <CAJH6TXgA0ghKX1P8UUAMFKY9o0xBJ0j4-kFa_M4a4ecdzoD0HA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-08-29 13:03 ` Fwd: " Gandalf Corvotempesta
2013-08-29 13:03 ` Gandalf Corvotempesta
[not found] ` <1828884A29C6694DAF28B7E6B8A8237388CA9C6B@ORSMSX109.amr.corp.intel.com>
[not found] ` <CAJH6TXiYLKt3b1UFsZt7uFwDbWcDFnHNnS8CTO24Gt-2zn+Qiw@mail.gmail.com>
[not found] ` <1828884A29C6694DAF28B7E6B8A8237388CA9D8A@ORSMSX109.amr.corp.intel.com>
[not found] ` <1828884A29C6694DAF28B7E6B8A8237388CA9D8A-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2013-08-29 18:57 ` Gandalf Corvotempesta
2013-08-30 8:19 ` Gandalf Corvotempesta
[not found] ` <CAJH6TXhWWMBbopDLZY2+rrNOm2m5gcmObj7Sr16u2qrNW_NHgw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-08-30 8:23 ` Gandalf Corvotempesta
[not found] ` <CAJH6TXgR=wVGyyHrpTKkBw-5M=A9-tGzjpYcV6NWpk8uKvFn8Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-08-30 10:29 ` Gandalf Corvotempesta
[not found] ` <CAJH6TXidOVJDTokOwxjCT9RRTOO6E_xbyG_K++YVkFx8NbhMTA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-08-30 17:38 ` Hefty, Sean
[not found] ` <1828884A29C6694DAF28B7E6B8A8237388CAA1B9-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2013-08-30 18:08 ` Atchley, Scott
2013-08-30 15:51 ` Hefty, Sean
[not found] ` <CAJH6TXgu4L8gnqQX1fKZ=ioZDxUMnj=s3h0qkYh1_35VWpMJ1g@mail.gmai! l.com>
[not found] ` <1828884A29C6694DAF28B7E6B8A8237388CAA11B-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2013-08-30 16:26 ` Gandalf Corvotempesta
[not found] ` <CAJH6TXgvViraH4SEcYydCerGyM6kK61eoiaENCy6PSf_1ocSVA@mail.gmai! l.com>
[not found] ` <CAJH6TXgvViraH4SEcYydCerGyM6kK61eoiaENCy6PSf_1ocSVA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-08-30 18:19 ` Rupert Dance
2013-08-31 9:20 ` Gandalf Corvotempesta
[not found] ` <CAJH6TXgu4L8gnqQX1fKZ=ioZDxUMnj=s3h0qkYh1_35VWpMJ1g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-08-31 11:34 ` Rupert Dance
2013-08-31 19:51 ` Gandalf Corvotempesta
[not found] ` <CAJH6TXiOToa2-EOj6Hz-rkVHt3tCSh4jnLbKZs69GhT7dFeH0A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-09-01 13:28 ` Rupert Dance
2013-09-01 17:41 ` Gandalf Corvotempesta
[not found] ` <CAJH6TXj53RZmzqA94CfPJjXBetK7us5v=cFyoMmjVUNQ-oeqpQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-09-03 9:17 ` Gandalf Corvotempesta
2013-09-03 12:06 ` Hal Rosenstock [this message]
[not found] ` <5225D0DD.7060803-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2013-09-03 12:21 ` Gandalf Corvotempesta
[not found] ` <CAJH6TXhSoxFshtuE0YqdVShQKSgX_wNwxekjy1+ZcGHR0vjC9w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-09-16 16:18 ` Gandalf Corvotempesta
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