Re: [PATCH v6 13/13] tests: Add postcopy preempt tests

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
To: Peter Xu <peterx@redhat.com>
Cc: qemu-devel@nongnu.org,
	Leonardo Bras Soares Passos <lsoaresp@redhat.com>,
	Juan Quintela <quintela@redhat.com>,
	Manish Mishra <manish.mishra@nutanix.com>,
	"Daniel P . Berrange" <berrange@redhat.com>
Subject: Re: [PATCH v6 13/13] tests: Add postcopy preempt tests
Date: Thu, 19 May 2022 09:58:16 +0100	[thread overview]
Message-ID: <YoYGqB3jDA1k9BGc@work-vm> (raw)
In-Reply-To: <20220517195730.32312-14-peterx@redhat.com>

* Peter Xu (peterx@redhat.com) wrote:
> Four tests are added for preempt mode:
> 
>   - Postcopy plain
>   - Postcopy recovery
>   - Postcopy tls
>   - Postcopy tls+recovery
> 
> Signed-off-by: Peter Xu <peterx@redhat.com>

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

> ---
>  tests/qtest/migration-test.c | 54 ++++++++++++++++++++++++++++++++++++
>  1 file changed, 54 insertions(+)
> 
> diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
> index ba7e4a2ed2..26264c7872 100644
> --- a/tests/qtest/migration-test.c
> +++ b/tests/qtest/migration-test.c
> @@ -477,6 +477,7 @@ typedef struct {
>       */
>      bool hide_stderr;
>      bool use_shmem;
> +    bool postcopy_preempt;
>      /* only launch the target process */
>      bool only_target;
>      /* Use dirty ring if true; dirty logging otherwise */
> @@ -992,6 +993,11 @@ static int migrate_postcopy_prepare(QTestState **from_ptr,
>      migrate_set_capability(to, "postcopy-ram", true);
>      migrate_set_capability(to, "postcopy-blocktime", true);
>  
> +    if (args->postcopy_preempt) {
> +        migrate_set_capability(from, "postcopy-preempt", true);
> +        migrate_set_capability(to, "postcopy-preempt", true);
> +    }
> +
>      /* We want to pick a speed slow enough that the test completes
>       * quickly, but that it doesn't complete precopy even on a slow
>       * machine, so also set the downtime.
> @@ -1058,6 +1064,25 @@ static void test_postcopy_tls_psk(void)
>      test_postcopy_common(&args);
>  }
>  
> +static void test_postcopy_preempt(void)
> +{
> +    MigrateStart args = {
> +        .postcopy_preempt = true,
> +    };
> +
> +    test_postcopy_common(&args);
> +}
> +
> +static void test_postcopy_preempt_tls_psk(void)
> +{
> +    MigrateStart args = {
> +        .postcopy_preempt = true,
> +        .postcopy_tls = true,
> +    };
> +
> +    test_postcopy_common(&args);
> +}
> +
>  static void test_postcopy_recovery_common(MigrateStart *args)
>  {
>      QTestState *from, *to;
> @@ -1134,6 +1159,24 @@ static void test_postcopy_recovery_tls_psk(void)
>      test_postcopy_recovery_common(&args);
>  }
>  
> +static void test_postcopy_preempt_recovery(void)
> +{
> +    MigrateStart args = { .postcopy_preempt = true };
> +
> +    test_postcopy_recovery_common(&args);
> +}
> +
> +/* This contains preempt+recovery+tls test altogether */
> +static void test_postcopy_preempt_all(void)
> +{
> +    MigrateStart args = {
> +        .postcopy_preempt = true,
> +        .postcopy_tls = true,
> +    };
> +
> +    test_postcopy_recovery_common(&args);
> +}
> +
>  static void test_baddest(void)
>  {
>      MigrateStart args = {
> @@ -2190,6 +2233,17 @@ int main(int argc, char **argv)
>      qtest_add_func("/migration/postcopy/recovery/tls/psk",
>                     test_postcopy_recovery_tls_psk);
>  #endif /* CONFIG_GNUTLS */
> +
> +    qtest_add_func("/migration/postcopy/preempt/plain", test_postcopy_preempt);
> +    qtest_add_func("/migration/postcopy/preempt/recovery/plain",
> +                   test_postcopy_preempt_recovery);
> +#ifdef CONFIG_GNUTLS
> +    qtest_add_func("/migration/postcopy/preempt/tls/psk",
> +                   test_postcopy_preempt_tls_psk);
> +    qtest_add_func("/migration/postcopy/preempt/recovery/tls/psk",
> +                   test_postcopy_preempt_all);
> +#endif /* CONFIG_GNUTLS */
> +
>      qtest_add_func("/migration/bad_dest", test_baddest);
>      qtest_add_func("/migration/precopy/unix/plain", test_precopy_unix_plain);
>      qtest_add_func("/migration/precopy/unix/xbzrle", test_precopy_unix_xbzrle);
> -- 
> 2.32.0
> 
-- 
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK