From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Subject: Re: [PATCH net-next v2 1/2] fs/crashdd: add API to collect hardware dump in second kernel To: Jiri Pirko , Andrew Lunn References: <296ffbd47fd4f30238689e636bd2480683224227.1521888444.git.rahul.lakkireddy@chelsio.com> <20180330103907.GC3313@nanopsycho> <20180330151129.GG28244@lunn.ch> <20180402091232.GE3313@nanopsycho> CC: Rahul Lakkireddy , , , , , , , , , , , , , From: Alex Vesker Message-ID: <0d106ece-4669-389d-da30-63a630ca625c@mellanox.com> Date: Tue, 3 Apr 2018 08:43:27 +0300 MIME-Version: 1.0 In-Reply-To: <20180402091232.GE3313@nanopsycho> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org List-ID: 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