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Re: [Qemu-devel] [PATCH v3 2/6] tests: migration test deprecated command
From: |
Peter Xu |
Subject: |
Re: [Qemu-devel] [PATCH v3 2/6] tests: migration test deprecated commands |
Date: |
Wed, 27 Dec 2017 11:00:29 +0800 |
User-agent: |
Mutt/1.9.1 (2017-09-22) |
On Tue, Dec 26, 2017 at 08:51:10PM +0100, Juan Quintela wrote:
> Peter Xu <address@hidden> wrote:
> > On Fri, Dec 01, 2017 at 01:58:09PM +0100, Juan Quintela wrote:
> >> We now test the deprecated commands everytime that we test the new
> >> commands. This makes unnecesary to add tests for deprecated commands.
> >>
> >> Signed-off-by: Juan Quintela <address@hidden>
> >> ---
> >> tests/migration-test.c | 32 ++++++++++++++++++++++++++++----
> >> 1 file changed, 28 insertions(+), 4 deletions(-)
> >>
> >> diff --git a/tests/migration-test.c b/tests/migration-test.c
> >> index 799e24ebc6..51f49c74e9 100644
> >> --- a/tests/migration-test.c
> >> +++ b/tests/migration-test.c
> >> @@ -369,7 +369,7 @@ static void migrate_check_parameter(QTestState *who,
> >> const char *parameter,
> >> QDECREF(rsp);
> >> }
> >>
> >> -static void migrate_set_downtime(QTestState *who, const double value)
> >> +static void deprecated_set_downtime(QTestState *who, const double value)
> >> {
> >> QDict *rsp;
> >> gchar *cmd;
> >> @@ -388,7 +388,7 @@ static void migrate_set_downtime(QTestState *who,
> >> const double value)
> >> g_free(expected);
> >> }
> >>
> >> -static void migrate_set_speed(QTestState *who, const char *value)
> >> +static void deprecated_set_speed(QTestState *who, const char *value)
> >> {
> >> QDict *rsp;
> >> gchar *cmd;
> >> @@ -402,6 +402,30 @@ static void migrate_set_speed(QTestState *who, const
> >> char *value)
> >> migrate_check_parameter(who, "max-bandwidth", value);
> >> }
> >>
> >> +static void migrate_set_parameter(QTestState *who, const char *parameter,
> >> + const char *value)
> >> +{
> >> + QDict *rsp;
> >> + gchar *cmd;
> >> +
> >> + if (strcmp(parameter, "downtime-limit") == 0) {
> >> + deprecated_set_downtime(who, 0.12345);
> >> + }
> >> +
> >> + if (strcmp(parameter, "max-bandwidth") == 0) {
> >> + deprecated_set_speed(who, "12345");
> >> + }
> >
> > I'm fine with current approach, but I would really prefer to put them
> > all into a standalone test, by just calling them one by one with some
> > specific numbers and that's all.
>
> That means another test (at least), and we have, also at least three
> deprecated comands:
> - migrate_set_speed
> - migrate_set_downtime
> - migrate_set_cache_size
>
> And each test makes things slower. So I *thought* it would we wiser to
> just check _always_ use the deprecated an the not deprecated one.
>
> > (luckily we only have two deprecated commands and limited tests,
> > otherwise extra commands will be M*N, say "number of deprecated
> > command" * "number of test mirations")
>
> Each test takes time, so adding tests make everything much slower.
> Notice that setting a new setting is fast.
>
> This was the way that I understood Dave he wanted.
Do you mean every test is slow, or just migration tests? Here I mean
to only test setting the parameters without doing real migration tests
(then query to make sure the settings were taking effect). I assume
that should be fast too? Thanks,
--
Peter Xu
Re: [Qemu-devel] [PATCH v3 2/6] tests: migration test deprecated commands, Dr. David Alan Gilbert, 2017/12/08
[Qemu-devel] [PATCH v3 3/6] tests: Add migration precopy test, Juan Quintela, 2017/12/01
[Qemu-devel] [PATCH v3 6/6] [RFH] tests: Add migration compress threads tests, Juan Quintela, 2017/12/01