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From: Qu Wenruo <quwenruo.btrfs@gmx.com>
To: Hans van Kranenburg <hans@knorrie.org>, Qu Wenruo <wqu@suse.com>,
	linux-btrfs@vger.kernel.org
Subject: Re: [PATCH 0/2] Use new incompat feature BG_TREE to hugely reduce mount time
Date: Mon, 25 Feb 2019 22:46:59 +0800	[thread overview]
Message-ID: <6a1bb4d1-cf3e-865d-c597-e50e65a4423a@gmx.com> (raw)
In-Reply-To: <e2794bf1-4a0c-c9aa-eeb3-843c644dbf59@knorrie.org>


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On 2019/2/25 下午9:16, Hans van Kranenburg wrote:
> On 2/25/19 2:10 PM, Qu Wenruo wrote:
>>
>>
>> On 2019/2/25 下午9:02, Hans van Kranenburg wrote:
>>> Hi Qu,
>>>
>>> On 1/2/19 6:29 AM, Qu Wenruo wrote:
>>>> This patchset can be fetched from:
>>>> https://github.com/adam900710/linux/tree/bg_tree
>>>> Which is based on v4.20-rc1 tag.
>>>>
>>>> This patchset will hugely reduce mount time of large fs by putting all
>>>> block group items into its own tree.
>>>
>>> I'm going to test this.
>>>
>>> Is there some specific command you'd like me to use to produce results
>>> for benchmarks?
>>
>> Nope. If I provides some commands, those must be super beneficial for
>> BG_TREE.
> 
> Ah, I meant, to produce output for the mount timings, like your 'ftrace
> function graph'.

I don't have anything better than ftrace function graph so far.

I assume you may need extra scripts to parse such output to create some
beautiful graph.

Thanks,
Qu

> 
>> So just use whatever you like, near real world use case would be more
>> appreciated.
> 
> Hans
> 


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      reply	other threads:[~2019-02-25 14:47 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-02  5:29 [PATCH 0/2] Use new incompat feature BG_TREE to hugely reduce mount time Qu Wenruo
2019-01-02  5:29 ` [PATCH 1/2] btrfs: Refactor btrfs_read_block_groups() Qu Wenruo
2019-01-02  5:29 ` [PATCH 2/2] btrfs: Introduce new incompat feature, BG_TREE Qu Wenruo
2019-01-08  7:34 ` [PATCH 0/2] Use new incompat feature BG_TREE to hugely reduce mount time Qu Wenruo
2019-02-25 13:02 ` Hans van Kranenburg
2019-02-25 13:10   ` Qu Wenruo
2019-02-25 13:16     ` Hans van Kranenburg
2019-02-25 14:46       ` Qu Wenruo [this message]

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