[libvirt] [PATCH perl] Add APIS & constants for new perf event support

Add binding for virDomainGetPerfEvents, virDomainSetPerfEvents, VIR_DOMAIN_STATS_PERF, VIR_PERF_PARAM_CMT, and VIR_FROM_PERF Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com&gt; --- Changes | 1 + Virt.xs | 43 +++++++++++++++++++++++++++++++++++++++++++ lib/Sys/Virt/Domain.pm | 34 ++++++++++++++++++++++++++++++++++ lib/Sys/Virt/Error.pm | 4 ++++ 4 files changed, 82 insertions(+) diff --git a/Changes b/Changes index 2f86a3d..8e08e3e 100644 --- a/Changes +++ b/Changes @@ -12,6 +12,7 @@ Revision history for perl module Sys::Virt - Add VIR_MIGRATE_PARAM_DISKS_PORT constant - Add virDomainMigrateStartPostCopy API support - Add constants related to post-copy migration + - Add APIS & constants for new perf event support 1.3.2 2016-03-01 diff --git a/Virt.xs b/Virt.xs index 3664521..50ed6cd 100644 --- a/Virt.xs +++ b/Virt.xs @@ -4213,6 +4213,46 @@ set_blkio_parameters(dom, newparams, flags=0) Safefree(params); +HV * +get_perf_events(dom, flags=0) + virDomainPtr dom; + unsigned int flags; + PREINIT: + virTypedParameter *params = NULL; + int nparams = 0; + CODE: + if (virDomainGetPerfEvents(dom, &params, &nparams, flags) < 0) { + Safefree(params); + _croak_error(); + } + + RETVAL = vir_typed_param_to_hv(params, nparams); + Safefree(params); + OUTPUT: + RETVAL + + +void +set_perf_events(dom, newparams, flags=0) + virDomainPtr dom; + HV *newparams; + unsigned int flags; + PREINIT: + virTypedParameter *params = NULL; + int nparams = 0; + PPCODE: + if (virDomainGetPerfEvents(dom, &params, &nparams, flags) < 0) { + Safefree(params); + _croak_error(); + } + + nparams = vir_typed_param_from_hv(newparams, params, nparams); + + if (virDomainSetPerfEvents(dom, params, nparams, flags) < 0) + _croak_error(); + Safefree(params); + + unsigned long get_max_memory(dom) virDomainPtr dom; @@ -7641,6 +7681,7 @@ BOOT: REGISTER_CONSTANT(VIR_DOMAIN_STATS_INTERFACE, STATS_INTERFACE); REGISTER_CONSTANT(VIR_DOMAIN_STATS_STATE, STATS_STATE); REGISTER_CONSTANT(VIR_DOMAIN_STATS_VCPU, STATS_VCPU); + REGISTER_CONSTANT(VIR_DOMAIN_STATS_PERF, STATS_PERF); REGISTER_CONSTANT(VIR_CONNECT_GET_ALL_DOMAINS_STATS_ACTIVE, GET_ALL_STATS_ACTIVE); REGISTER_CONSTANT(VIR_CONNECT_GET_ALL_DOMAINS_STATS_INACTIVE, GET_ALL_STATS_INACTIVE); @@ -7905,6 +7946,7 @@ BOOT: REGISTER_CONSTANT(VIR_DOMAIN_NUMATUNE_MEM_PREFERRED, NUMATUNE_MEM_PREFERRED); REGISTER_CONSTANT(VIR_DOMAIN_NUMATUNE_MEM_INTERLEAVE, NUMATUNE_MEM_INTERLEAVE); + REGISTER_CONSTANT_STR(VIR_PERF_PARAM_CMT, PERF_PARAM_CMT); REGISTER_CONSTANT_STR(VIR_DOMAIN_BANDWIDTH_IN_AVERAGE, BANDWIDTH_IN_AVERAGE); REGISTER_CONSTANT_STR(VIR_DOMAIN_BANDWIDTH_IN_PEAK, BANDWIDTH_IN_PEAK); @@ -8368,6 +8410,7 @@ BOOT: REGISTER_CONSTANT(VIR_FROM_ADMIN, FROM_ADMIN); REGISTER_CONSTANT(VIR_FROM_LOGGING, FROM_LOGGING); REGISTER_CONSTANT(VIR_FROM_XENXL, FROM_XENXL); + REGISTER_CONSTANT(VIR_FROM_PERF, FROM_PERF); REGISTER_CONSTANT(VIR_ERR_OK, ERR_OK); diff --git a/lib/Sys/Virt/Domain.pm b/lib/Sys/Virt/Domain.pm index 26ead9b..b095dbd 100644 --- a/lib/Sys/Virt/Domain.pm +++ b/lib/Sys/Virt/Domain.pm @@ -812,6 +812,23 @@ of the NUMA PARAMETERS constants. The C<$flags> parameter accepts one or more the CONFIG OPTION constants documented later, and defaults to 0 if omitted. +=item my $params = $dom->get_perf_events($flags=0) + +Return a hash reference containing the set of performance +events that are available for the guest. The keys in the +hash are one of the constants PERF EVENTS described later. +The C<$flags> parameter accepts one or more the CONFIG +OPTION constants documented later, and defaults to 0 if +omitted. + +=item $dom->set_perf_events($params, $flags=0) + +Update the enabled state for performance events for the +guest. The C<$params> should be a hash reference whose +keys are one of the PERF EVENTS constants. The C<$flags> +parameter accepts one or more the CONFIG OPTION constants +documented later, and defaults to 0 if omitted. + =item $dom->block_resize($disk, $newsize, $flags=0) Resize the disk C<$disk> to have new size C<$newsize> KB. If the disk @@ -2588,6 +2605,19 @@ The burstable outbound bandwidth =back +=head2 PERF EVENTS + +The following constants defined performance events +which can be monitored for a guest + +=over 4 + +=item Sys::Virt::Domain::PERF_PARAM_CMT + +The CMT event counter + +=back + =head2 VCPU FLAGS The following constants are useful when getting/setting the @@ -3716,6 +3746,10 @@ General lifecycle state Virtual CPU info +=item Sys::Virt::Domain::STATS_PERF + +Performance event counter values + =back =head2 PROCESS SIGNALS diff --git a/lib/Sys/Virt/Error.pm b/lib/Sys/Virt/Error.pm index 3f6b058..b54f876 100644 --- a/lib/Sys/Virt/Error.pm +++ b/lib/Sys/Virt/Error.pm @@ -394,6 +394,10 @@ The logging service The Xen XL driver +=item Sys::Virt::Error::FROM_PERF + +The performance events subsystem + =back =head2 ERROR CODE CONSTANTS -- 2.5.5