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Re: [Qemu-devel] [PATCH v2 2/3] tests/vm: Do not abuse parallelism when
From: |
Fam Zheng |
Subject: |
Re: [Qemu-devel] [PATCH v2 2/3] tests/vm: Do not abuse parallelism when KVM is not available |
Date: |
Thu, 11 Oct 2018 10:46:11 +0800 |
User-agent: |
Mutt/1.10.1 (2018-07-13) |
On Mon, 10/01 01:23, Philippe Mathieu-Daudé wrote:
> Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
> ---
> v2: Add get_default_jobs (Fam suggestion)
> ---
> tests/vm/basevm.py | 13 ++++++++++---
> 1 file changed, 10 insertions(+), 3 deletions(-)
>
> diff --git a/tests/vm/basevm.py b/tests/vm/basevm.py
> index 5a5fa09752..fc203e9f53 100755
> --- a/tests/vm/basevm.py
> +++ b/tests/vm/basevm.py
> @@ -202,6 +202,13 @@ class BaseVM(object):
> return self._guest.qmp(*args, **kwargs)
>
> def parse_args(vm_name):
> +
> + def get_default_jobs():
> + if kvm_available():
> + return multiprocessing.cpu_count() / 2
> + else:
> + return 1
> +
> parser = optparse.OptionParser(
> description="VM test utility. Exit codes: "
> "0 = success, "
> @@ -214,7 +221,7 @@ def parse_args(vm_name):
> help="image file name")
> parser.add_option("--force", "-f", action="store_true",
> help="force build image even if image exists")
> - parser.add_option("--jobs", type=int,
> default=multiprocessing.cpu_count() / 2,
> + parser.add_option("--jobs", type=int, default=get_default_jobs(),
> help="number of virtual CPUs")
> parser.add_option("--verbose", "-V", action="store_true",
> help="Pass V=1 to builds within the guest")
> @@ -237,7 +244,7 @@ def main(vmcls):
> return 1
> logging.basicConfig(level=(logging.DEBUG if args.debug
> else logging.WARN))
> - vm = vmcls(debug=args.debug, vcpus=args.jobs)
> + vm = vmcls(debug=args.debug, vcpus=args.jobs if kvm_available() else
> 0)
What's wrong with just using args.jobs? It defaults to 1 if kvm_available()
returns false, so I don't think we need another condition here.
> if args.build_image:
> if os.path.exists(args.image) and not args.force:
> sys.stderr.writelines(["Image file exists: %s\n" %
> args.image,
> @@ -248,7 +255,7 @@ def main(vmcls):
> vm.add_source_dir(args.build_qemu)
> cmd = [vm.BUILD_SCRIPT.format(
> configure_opts = " ".join(argv),
> - jobs=args.jobs,
> + jobs=args.jobs if kvm_available() else 1,
Again, can't we just use args.jobs?
> verbose = "V=1" if args.verbose else "")]
> else:
> cmd = argv
> --
> 2.19.0
>
Fam
- Re: [Qemu-devel] [PATCH v2 2/3] tests/vm: Do not abuse parallelism when KVM is not available,
Fam Zheng <=