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bh=M7o2cKVu+UGBaSUiPSLKFo8vQrpuYxHxzDDgpf8ZCkk=; b=IX4ELUZe4GceFV+xu9XGe4F3ofjgJAbrL5Fn6jR6tYBZNHW+hr31VPUdDrjtISZv8Iv4w4 BOWFH8B/5LtSKfS3IrSllf+SxYKiNX+JCsL0MV9k3T2QAqVUcymqUVpnaOcm2YcZEPpVYN YQXUOE6eGxnU7q9HoBmsA7ErbuZPWqo= X-MC-Unique: T-OUcvPJOku0CaL8c4MD9Q-1 From: "Dr. David Alan Gilbert (git)" To: qemu-devel@nongnu.org, david@redhat.com, zhukeqian1@huawei.com, maozhongyi@cmss.chinamobile.com, marcandre.lureau@redhat.com, pannengyuan@huawei.com, f4bug@amsat.org, wei.w.wang@intel.com, yi.y.sun@intel.com, quintela@redhat.com Subject: [PULL 05/12] docs/devel/migration: start a debugging section Date: Thu, 7 May 2020 18:02:04 +0100 Message-Id: <20200507170211.238283-6-dgilbert@redhat.com> In-Reply-To: <20200507170211.238283-1-dgilbert@redhat.com> References: <20200507170211.238283-1-dgilbert@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" From: Marc-Andr=C3=A9 Lureau Explain how to use analyze-migration.py, this may help. Signed-off-by: Marc-Andr=C3=A9 Lureau Message-Id: <20200330174852.456148-1-marcandre.lureau@redhat.com> Reviewed-by: Dr. David Alan Gilbert Reviewed-by: Daniel P. Berrang=C3=A9 Signed-off-by: Dr. David Alan Gilbert --- docs/devel/migration.rst | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/docs/devel/migration.rst b/docs/devel/migration.rst index e88918f763..2eb08624fc 100644 --- a/docs/devel/migration.rst +++ b/docs/devel/migration.rst @@ -50,6 +50,26 @@ All these migration protocols use the same infrastructur= e to save/restore state devices. This infrastructure is shared with the savevm/loadvm functionality. =20 +Debugging +=3D=3D=3D=3D=3D=3D=3D=3D=3D + +The migration stream can be analyzed thanks to `scripts/analyze_migration.= py`. + +Example usage: + +.. code-block:: shell + + $ qemu-system-x86_64 + (qemu) migrate "exec:cat > mig" + $ ./scripts/analyze_migration.py -f mig + { + "ram (3)": { + "section sizes": { + "pc.ram": "0x0000000008000000", + ... + +See also ``analyze_migration.py -h`` help for more options. + Common infrastructure =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =20 --=20 2.26.2