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List:       fedora-devel-list
Subject:    Re: Fedora 33 System-Wide Change proposal: Make btrfs the default file system for desktop variants
From:       Tomasz Torcz <tomek () pipebreaker ! pl>
Date:       2020-07-10 19:45:21
Message-ID: 20200710194521.GB3275681 () mother ! pipebreaker ! pl
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On Fri, Jul 10, 2020 at 07:14:09PM +0200, Vitaly Zaitsev via devel wrote:
> On 26.06.2020 16:42, Ben Cotton wrote:
> > ** transparent compression: significantly reduces write amplification,
> > improves lifespan of storage hardware
> 
> What can you say about this? https://arxiv.org/pdf/1707.08514.pdf

  Also funny note: when compression was introduced in ZFS, circa 2007,
it was mainly promoted as _performance_ win, not a space saving measure.
This was still 5 years before NVMe, so all we had was SATA, SAS and FC
drives, yet the CPUs were already multi-core and multi-gigahertz.
Transfering uncompressed data was _slower_ than compressing/decompressing
and having to transfer less data.  For a bit higher CPU usage we got
noticeable bandwidth wins.
  The tradeoff is no longer there, as single drives reach 7GiB/s
transfer speed.

-- 
Tomasz Torcz                Only gods can safely risk perfection,
tomek@pipebreaker.pl     it's a dangerous thing for a man.  — Alia
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