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