Re: [RFC 0/2] ext4: Improve locking sequence in DIO write path

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To: Joseph Qi <joseph.qi@xxxxxxxxxxxxxxxxx>, jack@xxxxxxx, tytso@xxxxxxx, linux-ext4@xxxxxxxxxxxxxxx
Subject: Re: [RFC 0/2] ext4: Improve locking sequence in DIO write path
From: Ritesh Harjani <riteshh@xxxxxxxxxxxxx>
Date: Mon, 23 Sep 2019 11:49:03 +0530
Cc: david@xxxxxxxxxxxxx, hch@xxxxxxxxxxxxx, adilger@xxxxxxxxx, mbobrowski@xxxxxxxxxxxxxx, rgoldwyn@xxxxxxx
In-reply-to: <d264b7b0-334a-eb36-4fdb-5af5526ea4aa@linux.alibaba.com>
References: <20190917103249.20335-1-riteshh@linux.ibm.com> <d1f3b048-d21c-67f1-09a3-dd2abf7c156d@linux.alibaba.com> <20190918100336.3A4DA11C050@d06av25.portsmouth.uk.ibm.com> <d264b7b0-334a-eb36-4fdb-5af5526ea4aa@linux.alibaba.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2

Finally, I got hold of some HW. I am collecting the numbers as we speak.
Will post those tomorrow.


I have sent RFC-v2 with comprehensive set of performance numbers and
charts. It could be found below.

https://marc.info/?l=linux-ext4&m=156921748126221&w=2

Please take a look at it.

-ritesh

References:
- [RFC 0/2] ext4: Improve locking sequence in DIO write path
  - From: Ritesh Harjani
- Re: [RFC 0/2] ext4: Improve locking sequence in DIO write path
  - From: Joseph Qi
- Re: [RFC 0/2] ext4: Improve locking sequence in DIO write path
  - From: Ritesh Harjani
- Re: [RFC 0/2] ext4: Improve locking sequence in DIO write path
  - From: Joseph Qi

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