From: Prasad Pandit <p...@fedoraproject.org>
Hello,
* This series (v5) consolidates migration capabilities setting in one
'set_migration_capabilities()' function, thus simplifying test sources.
It passes all migration tests.
===
66/66 qemu:qtest+qtest-x86_64 / qtest-x86_64/migration-test OK
143.66s 71 subtests passed
===
v4:
https://lore.kernel.org/qemu-devel/20250127120823.144949-1-ppan...@redhat.com/T/#t
* This series (v4) adds more 'multifd+postcopy' qtests which test
Precopy migration with 'postcopy-ram' attribute set. And run
Postcopy migrations with 'multifd' channels enabled.
===
$ ../qtest/migration-test --tap -k -r '/x86_64/migration/multifd+postcopy' |
grep -i 'slow test'
# slow test /x86_64/migration/multifd+postcopy/plain executed in 1.29 secs
# slow test /x86_64/migration/multifd+postcopy/recovery/tls/psk executed in
2.48 secs
# slow test /x86_64/migration/multifd+postcopy/preempt/plain executed in 1.49
secs
# slow test /x86_64/migration/multifd+postcopy/preempt/recovery/tls/psk
executed in 2.52 secs
# slow test /x86_64/migration/multifd+postcopy/tcp/tls/psk/match executed in
3.62 secs
# slow test /x86_64/migration/multifd+postcopy/tcp/plain/zstd executed in 1.34
secs
# slow test /x86_64/migration/multifd+postcopy/tcp/plain/cancel executed in
2.24 secs
...
66/66 qemu:qtest+qtest-x86_64 / qtest-x86_64/migration-test OK
148.41s 71 subtests passed
===
v3:
https://lore.kernel.org/qemu-devel/20250121131032.1611245-1-ppan...@redhat.com/T/#t
* This series (v3) passes all existing 'tests/qtest/migration/*' tests
and adds a new one to enable multifd channels with postcopy migration.
v2:
https://lore.kernel.org/qemu-devel/20241129122256.96778-1-ppan...@redhat.com/T/#u
* This series (v2) further refactors the 'ram_save_target_page'
function to make it independent of the multifd & postcopy change.
v1:
https://lore.kernel.org/qemu-devel/20241126115748.118683-1-ppan...@redhat.com/T/#u
* This series removes magic value (4-bytes) introduced in the
previous series for the Postcopy channel.
v0:
https://lore.kernel.org/qemu-devel/20241029150908.1136894-1-ppan...@redhat.com/T/#u
* Currently Multifd and Postcopy migration can not be used together.
QEMU shows "Postcopy is not yet compatible with multifd" message.
When migrating guests with large (100's GB) RAM, Multifd threads
help to accelerate migration, but inability to use it with the
Postcopy mode delays guest start up on the destination side.
* This patch series allows to enable both Multifd and Postcopy
migration together. Precopy and Multifd threads work during
the initial guest (RAM) transfer. When migration moves to the
Postcopy phase, Multifd threads are restrained and the Postcopy
threads start to request pages from the source side.
* This series introduces magic value (4-bytes) to be sent on the
Postcopy channel. It helps to differentiate channels and properly
setup incoming connections on the destination side.
Thank you.
---
Prasad Pandit (5):
migration/multifd: move macros to multifd header
migration: refactor ram_save_target_page functions
migration: enable multifd and postcopy together
tests/qtest/migration: add postcopy tests with multifd
tests/qtest/migration: consolidate set capabilities
migration/migration.c | 106 ++++++++++++++--------
migration/multifd-nocomp.c | 3 +-
migration/multifd.c | 5 -
migration/multifd.h | 5 +
migration/options.c | 5 -
migration/ram.c | 69 ++++----------
tests/qtest/migration/compression-tests.c | 18 +++-
tests/qtest/migration/cpr-tests.c | 4 +-
tests/qtest/migration/file-tests.c | 44 +++------
tests/qtest/migration/framework.c | 58 ++++++++++--
tests/qtest/migration/framework.h | 4 +-
tests/qtest/migration/postcopy-tests.c | 27 +++++-
tests/qtest/migration/precopy-tests.c | 38 +++++---
tests/qtest/migration/tls-tests.c | 45 ++++++++-
14 files changed, 262 insertions(+), 169 deletions(-)
--
2.48.1
