| Message ID | 20240209070141.421569-7-npiggin@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Multi-migration support | expand |
On 09/02/2024 08.01, Nicholas Piggin wrote: > Console output required to support migration becomes quite noisy > when doing lots of migrations. Provide a migrate_quiet() call that > suppresses console output and doesn't log a message. > > Signed-off-by: Nicholas Piggin <npiggin@gmail.com> > --- > lib/migrate.c | 12 ++++++++++++ > lib/migrate.h | 1 + > scripts/arch-run.bash | 4 ++-- > 3 files changed, 15 insertions(+), 2 deletions(-) > > diff --git a/lib/migrate.c b/lib/migrate.c > index b7721659..4e0ab516 100644 > --- a/lib/migrate.c > +++ b/lib/migrate.c > @@ -18,6 +18,18 @@ void migrate(void) > report_info("Migration complete"); > } > > +/* > + * Like migrate() but supporess output and logs, useful for intensive s/supporess/suppress/ > + * migration stress testing without polluting logs. Test cases should > + * provide relevant information about migration in failure reports. > + */ > +void migrate_quiet(void) > +{ > + puts("Now migrate the VM (quiet)\n"); > + (void)getchar(); > +} > + > + Remove one empty line, please! > /* > * Initiate migration and wait for it to complete. > * If this function is called more than once, it is a no-op. > diff --git a/lib/migrate.h b/lib/migrate.h > index 2af06a72..95b9102b 100644 > --- a/lib/migrate.h > +++ b/lib/migrate.h > @@ -7,4 +7,5 @@ > */ > > void migrate(void); > +void migrate_quiet(void); > void migrate_once(void); > diff --git a/scripts/arch-run.bash b/scripts/arch-run.bash > index 0b45eb61..29cf9b0c 100644 > --- a/scripts/arch-run.bash > +++ b/scripts/arch-run.bash > @@ -152,7 +152,7 @@ run_migration () > -chardev socket,id=mon,path=${src_qmp},server=on,wait=off \ > -mon chardev=mon,mode=control > ${src_outfifo} & > live_pid=$! > - cat ${src_outfifo} | tee ${src_out} & > + cat ${src_outfifo} | tee ${src_out} | grep -v "Now migrate the VM (quiet)" & > > # The test must prompt the user to migrate, so wait for the "migrate" > # keyword > @@ -200,7 +200,7 @@ do_migration () > -mon chardev=mon,mode=control -incoming unix:${dst_incoming} \ > < <(cat ${dst_infifo}) > ${dst_outfifo} & > incoming_pid=$! > - cat ${dst_outfifo} | tee ${dst_out} & > + cat ${dst_outfifo} | tee ${dst_out} | grep -v "Now migrate the VM (quiet)" & > > # The test must prompt the user to migrate, so wait for the "migrate" keyword > while ! grep -q -i "Now migrate the VM" < ${src_out} ; do Thomas
diff --git a/lib/migrate.c b/lib/migrate.c index b7721659..4e0ab516 100644 --- a/lib/migrate.c +++ b/lib/migrate.c @@ -18,6 +18,18 @@ void migrate(void) report_info("Migration complete"); } +/* + * Like migrate() but supporess output and logs, useful for intensive + * migration stress testing without polluting logs. Test cases should + * provide relevant information about migration in failure reports. + */ +void migrate_quiet(void) +{ + puts("Now migrate the VM (quiet)\n"); + (void)getchar(); +} + + /* * Initiate migration and wait for it to complete. * If this function is called more than once, it is a no-op. diff --git a/lib/migrate.h b/lib/migrate.h index 2af06a72..95b9102b 100644 --- a/lib/migrate.h +++ b/lib/migrate.h @@ -7,4 +7,5 @@ */ void migrate(void); +void migrate_quiet(void); void migrate_once(void); diff --git a/scripts/arch-run.bash b/scripts/arch-run.bash index 0b45eb61..29cf9b0c 100644 --- a/scripts/arch-run.bash +++ b/scripts/arch-run.bash @@ -152,7 +152,7 @@ run_migration () -chardev socket,id=mon,path=${src_qmp},server=on,wait=off \ -mon chardev=mon,mode=control > ${src_outfifo} & live_pid=$! - cat ${src_outfifo} | tee ${src_out} & + cat ${src_outfifo} | tee ${src_out} | grep -v "Now migrate the VM (quiet)" & # The test must prompt the user to migrate, so wait for the "migrate" # keyword @@ -200,7 +200,7 @@ do_migration () -mon chardev=mon,mode=control -incoming unix:${dst_incoming} \ < <(cat ${dst_infifo}) > ${dst_outfifo} & incoming_pid=$! - cat ${dst_outfifo} | tee ${dst_out} & + cat ${dst_outfifo} | tee ${dst_out} | grep -v "Now migrate the VM (quiet)" & # The test must prompt the user to migrate, so wait for the "migrate" keyword while ! grep -q -i "Now migrate the VM" < ${src_out} ; do
Console output required to support migration becomes quite noisy when doing lots of migrations. Provide a migrate_quiet() call that suppresses console output and doesn't log a message. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- lib/migrate.c | 12 ++++++++++++ lib/migrate.h | 1 + scripts/arch-run.bash | 4 ++-- 3 files changed, 15 insertions(+), 2 deletions(-)