Re: [Boost-build] HCACHEFILE still used?

Subject: Re: [Boost-build] HCACHEFILE still used?
From: Nogradi, Chris (Chris.Nogradi_at_[hidden])
Date: 2015-03-24 08:04:23

On 03/23/2015 02:03 PM, Phillip Seaver wrote:
> I was just wondering if setting HCACHEFILE is still useful.  Back when
> we turned it on, many years ago, it made a significant difference in
> builds after the first.
>

On our 30 seconds no-op build times (loading jam files and generating deps with nothing to update) we see a 10% speed up (27 sec) with it so nothing to write home about.  The disks are just too fast since we are using SSDs for builds.

Chris

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