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From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
To: qemu-block@nongnu.org
Cc: kwolf@redhat.com, vsementsov@virtuozzo.com,
	wencongyang2@huawei.com, xiechanglong.d@gmail.com,
	qemu-devel@nongnu.org, armbru@redhat.com, jsnow@redhat.com,
	den@openvz.org, mreitz@redhat.com
Subject: [PATCH v4 13/23] iotests: 219: prepare for backup over block-copy
Date: Sun, 17 Jan 2021 00:46:55 +0300
Message-ID: <20210116214705.822267-14-vsementsov@virtuozzo.com> (raw)
In-Reply-To: <20210116214705.822267-1-vsementsov@virtuozzo.com>

The further change of moving backup to be a one block-copy call will
make copying chunk-size and cluster-size two separate things. So, even
with 64k cluster sized qcow2 image, default chunk would be 1M.
Test 219 depends on specified chunk-size. Update it for explicit
chunk-size for backup as for mirror.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
---
 tests/qemu-iotests/219 | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/tests/qemu-iotests/219 b/tests/qemu-iotests/219
index db272c5249..d7b177bf09 100755
--- a/tests/qemu-iotests/219
+++ b/tests/qemu-iotests/219
@@ -203,13 +203,13 @@ with iotests.FilePath('disk.img') as disk_path, \
     # but related to this also automatic state transitions like job
     # completion), but still get pause points often enough to avoid making this
     # test very slow, it's important to have the right ratio between speed and
-    # buf_size.
+    # copy-chunk-size.
     #
-    # For backup, buf_size is hard-coded to the source image cluster size (64k),
-    # so we'll pick the same for mirror. The slice time, i.e. the granularity
-    # of the rate limiting is 100ms. With a speed of 256k per second, we can
-    # get four pause points per second. This gives us 250ms per iteration,
-    # which should be enough to stay deterministic.
+    # Chose 64k copy-chunk-size both for mirror (by buf_size) and backup (by
+    # x-max-chunk). The slice time, i.e. the granularity of the rate limiting
+    # is 100ms. With a speed of 256k per second, we can get four pause points
+    # per second. This gives us 250ms per iteration, which should be enough to
+    # stay deterministic.
 
     test_job_lifecycle(vm, 'drive-mirror', has_ready=True, job_args={
         'device': 'drive0-node',
@@ -226,6 +226,7 @@ with iotests.FilePath('disk.img') as disk_path, \
                 'target': copy_path,
                 'sync': 'full',
                 'speed': 262144,
+                'x-perf': {'max-chunk': 65536},
                 'auto-finalize': auto_finalize,
                 'auto-dismiss': auto_dismiss,
             })
-- 
2.29.2



  parent reply index

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-16 21:46 [PATCH v4 00/23] backup performance: block_status + async Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 01/23] qapi: backup: add perf.use-copy-range parameter Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 02/23] block/block-copy: More explicit call_state Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 03/23] block/block-copy: implement block_copy_async Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 04/23] block/block-copy: add max_chunk and max_workers parameters Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 05/23] block/block-copy: add list of all call-states Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 06/23] block/block-copy: add ratelimit to block-copy Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 07/23] block/block-copy: add block_copy_cancel Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 08/23] blockjob: add set_speed to BlockJobDriver Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 09/23] job: call job_enter from job_pause Vladimir Sementsov-Ogievskiy
2021-01-18 13:45   ` Max Reitz
2021-01-18 14:20     ` Max Reitz
2021-04-07 11:19   ` Max Reitz
2021-04-07 11:38     ` Vladimir Sementsov-Ogievskiy
2021-04-21  8:31       ` Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 10/23] qapi: backup: add max-chunk and max-workers to x-perf struct Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 11/23] iotests: 56: prepare for backup over block-copy Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 12/23] iotests: 185: " Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` Vladimir Sementsov-Ogievskiy [this message]
2021-01-16 21:46 ` [PATCH v4 14/23] iotests: 257: " Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 15/23] block/block-copy: make progress_bytes_callback optional Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 16/23] block/backup: drop extra gotos from backup_run() Vladimir Sementsov-Ogievskiy
2021-01-16 21:46 ` [PATCH v4 17/23] backup: move to block-copy Vladimir Sementsov-Ogievskiy
2021-01-16 21:47 ` [PATCH v4 18/23] qapi: backup: disable copy_range by default Vladimir Sementsov-Ogievskiy
2021-01-16 21:47 ` [PATCH v4 19/23] block/block-copy: drop unused block_copy_set_progress_callback() Vladimir Sementsov-Ogievskiy
2021-01-16 21:47 ` [PATCH v4 20/23] block/block-copy: drop unused argument of block_copy() Vladimir Sementsov-Ogievskiy
2021-01-16 21:47 ` [PATCH v4 21/23] simplebench/bench_block_job: use correct shebang line with python3 Vladimir Sementsov-Ogievskiy
2021-01-16 21:47 ` [PATCH v4 22/23] simplebench: bench_block_job: add cmd_options argument Vladimir Sementsov-Ogievskiy
2021-01-16 21:47 ` [PATCH v4 23/23] simplebench: add bench-backup.py Vladimir Sementsov-Ogievskiy
2021-01-18 14:01   ` Max Reitz
2021-01-18 15:07 ` [PATCH v4 00/23] backup performance: block_status + async Max Reitz
2021-01-18 17:04   ` Vladimir Sementsov-Ogievskiy
2021-01-19 18:40 ` Max Reitz
2021-01-19 19:22   ` Vladimir Sementsov-Ogievskiy
2021-01-19 19:29     ` Vladimir Sementsov-Ogievskiy
2021-01-20 10:39     ` Max Reitz
2021-01-20 13:50       ` Max Reitz
2021-01-20 14:34         ` Max Reitz
2021-01-20 14:44           ` Max Reitz
2021-01-20 15:53             ` Max Reitz
2021-01-20 16:00               ` Max Reitz
2021-01-20 16:04               ` Daniel P. Berrangé
2021-01-20 16:40                 ` Max Reitz
2021-01-20 10:20 ` [PATCH v4 11.5/23] iotests/129: Limit backup's max-chunk/max-workers Max Reitz
2021-01-20 11:24   ` Vladimir Sementsov-Ogievskiy

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