Re: [PATCH 1/3] Add public API for parallel compression method

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On Wed, Jan 18, 2023 at 21:52:30 +0800, Jiang Jiacheng wrote:
> > I think we should just be able to use the existing
> > VIR_MIGRATE_PARAM_COMPRESSION to specify the method. We know whether
> > we're asking for parallel migration from VIR_MIGRATE_PARALLEL flag. We
> > might need to add checks for which compression methods are only allowed
> > with/without VIR_MIGRATE_PARALLEL.
> >
> 
> I see, I will try this way and add necessary check for them in next version.
> 
> > On the other hand, for consistency reasons I think we should add
> > separate VIR_MIGRATE_PARAM_COMPRESSION_ZLIB_LEVEL and
> > VIR_MIGRATE_PARAM_COMPRESSION_ZSTD_LEVEL even though they are the same.
> > The other two compressions methods we currently support (mt and
> > xbzrle) have each their own set of parameters.
> >
> 
> If so, shall we keeping using separate virsh migrate options(like
> --comp-zlib-level and --comp-zstd-level)?
> Or just use one option (--parallel-comp-level) to pass compression
> level, according to the compression method we have chosen?

Separate options, please, (i.e., --comp-zlib-level and
--comp-zstd-level) to be consistent with the API.

Jirka




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