From: "Dr. David Alan Gilbert (git)" <dgilbert@redhat.com>
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 [thread overview]
Message-ID: <20200507170211.238283-6-dgilbert@redhat.com> (raw)
In-Reply-To: <20200507170211.238283-1-dgilbert@redhat.com>
From: Marc-André Lureau <marcandre.lureau@redhat.com>
Explain how to use analyze-migration.py, this may help.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200330174852.456148-1-marcandre.lureau@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
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 infrastructure to
save/restore state devices. This infrastructure is shared with the
savevm/loadvm functionality.
+Debugging
+=========
+
+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
=====================
--
2.26.2
next prev parent reply other threads:[~2020-05-07 17:06 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-07 17:01 [PULL 00/12] migration queue Dr. David Alan Gilbert (git)
2020-05-07 17:02 ` [PULL 01/12] migration: fix bad indentation in error_report() Dr. David Alan Gilbert (git)
2020-05-07 17:02 ` [PULL 02/12] migration/migration: improve error reporting for migrate parameters Dr. David Alan Gilbert (git)
2020-05-07 17:02 ` [PULL 03/12] monitor/hmp-cmds: add hmp_handle_error() for hmp_migrate_set_speed() Dr. David Alan Gilbert (git)
2020-05-07 17:02 ` [PULL 04/12] migration: move the units of migrate parameters from milliseconds to ms Dr. David Alan Gilbert (git)
2020-05-07 17:02 ` Dr. David Alan Gilbert (git) [this message]
2020-05-07 17:02 ` [PULL 06/12] migration/colo: Add missing error-propagation code Dr. David Alan Gilbert (git)
2020-05-07 17:02 ` [PULL 07/12] migration/throttle: Add cpu-throttle-tailslow migration parameter Dr. David Alan Gilbert (git)
2020-05-07 17:02 ` [PULL 08/12] migration/ram: Consolidate variable reset after placement in ram_load_postcopy() Dr. David Alan Gilbert (git)
2020-05-07 17:02 ` [PULL 09/12] migration/rdma: fix a memleak on error path in rdma_start_incoming_migration Dr. David Alan Gilbert (git)
2020-05-07 17:02 ` [PULL 10/12] migration/xbzrle: add encoding rate Dr. David Alan Gilbert (git)
2020-05-07 17:02 ` [PULL 11/12] migration/multifd: fix memleaks in multifd_new_send_channel_async Dr. David Alan Gilbert (git)
2020-05-07 17:02 ` [PULL 12/12] migration/multifd: Do error_free after migrate_set_error to avoid memleaks Dr. David Alan Gilbert (git)
2020-05-07 18:49 ` [PULL 00/12] migration queue Peter Maydell
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