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From: Alex Vesker <valex@mellanox.com>
To: Jiri Pirko <jiri@resnulli.us>, Andrew Lunn <andrew@lunn.ch>
Cc: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>,
	<netdev@vger.kernel.org>, <linux-fsdevel@vger.kernel.org>,
	<kexec@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
	<davem@davemloft.net>, <viro@zeniv.linux.org.uk>,
	<ebiederm@xmission.com>, <stephen@networkplumber.org>,
	<akpm@linux-foundation.org>, <torvalds@linux-foundation.org>,
	<ganeshgr@chelsio.com>, <nirranjan@chelsio.com>,
	<indranil@chelsio.com>
Subject: Re: [PATCH net-next v2 1/2] fs/crashdd: add API to collect hardware dump in second kernel
Date: Tue, 3 Apr 2018 08:43:27 +0300	[thread overview]
Message-ID: <0d106ece-4669-389d-da30-63a630ca625c@mellanox.com> (raw)
In-Reply-To: <20180402091232.GE3313@nanopsycho>



On 4/2/2018 12:12 PM, Jiri Pirko wrote:
> Fri, Mar 30, 2018 at 05:11:29PM CEST, andrew@lunn.ch wrote:
>>> Please see:
>>> http://patchwork.ozlabs.org/project/netdev/list/?series=36524
>>>
>>> I bevieve that the solution in the patchset could be used for
>>> your usecase too.
>> Hi Jiri
>>
>> https://lkml.org/lkml/2018/3/20/436
>>
>> How well does this API work for a 2Gbyte snapshot?
> Ccing Alex who did the tests.

I didn't check the performance for such a large snapshot.
 From my measurement it takes 0.09s for 1 MB of data this means
about ~3m.
This can be tuned and improved since this is a socket application.

>>     Andrew

  reply	other threads:[~2018-04-03  5:43 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-24 10:56 [PATCH net-next v2 0/2] kernel: add support to collect hardware logs in crash recovery kernel Rahul Lakkireddy
2018-03-24 10:56 ` [PATCH net-next v2 1/2] fs/crashdd: add API to collect hardware dump in second kernel Rahul Lakkireddy
2018-03-25 12:43   ` kbuild test robot
2018-03-30 10:39   ` Jiri Pirko
2018-03-30 10:51     ` Rahul Lakkireddy
2018-03-30 18:42       ` Eric W. Biederman
2018-04-02  9:11         ` Jiri Pirko
2018-04-02 12:21           ` Andrew Lunn
2018-04-02 12:30           ` Rahul Lakkireddy
2018-04-03  7:04             ` Jiri Pirko
2018-03-30 15:11     ` Andrew Lunn
2018-04-02  9:12       ` Jiri Pirko
2018-04-03  5:43         ` Alex Vesker [this message]
2018-04-03 12:35           ` Andrew Lunn
2018-03-24 10:56 ` [PATCH net-next v2 2/2] cxgb4: " Rahul Lakkireddy
2018-03-24 15:18   ` Andrew Lunn
2018-03-24 22:18   ` Thadeu Lima de Souza Cascardo
2018-03-25  0:17     ` Eric W. Biederman
2018-03-24 15:20 ` [PATCH net-next v2 0/2] kernel: add support to collect hardware logs in crash recovery kernel Eric W. Biederman
2018-03-26 13:45   ` Rahul Lakkireddy
2018-03-27 13:17     ` Eric W. Biederman
2018-03-27 15:27       ` Rahul Lakkireddy
2018-03-27 15:59         ` Eric W. Biederman

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