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sflow: Export OVS datapath performance counters via sFlow.

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The OVS cache hit/miss counters and memory/CPU usage statistics have been
identified as important metrics when managing large deployments. This patch
allows them to be pushed periodically as part of the sFlow feed,  and
represents a more efficient and scalable alternative to polling via
ovs-dpctl(1).

Signed-off-by: Neil McKee <neil.mckee@inmon.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Neil McKee
2014-12-16 14:42:05 -08:00
committed by Ben Pfaff
parent 849222ddd5
commit 3d2912f20e
4 changed files with 188 additions and 3 deletions
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34
lib/sflow.h
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@@ -543,6 +543,34 @@ typedef struct _SFLLACP_counters {
#define SFL_CTR_LACP_XDR_SIZE 56
/* Application resource counters */
typedef struct _SFLAPPResources_counters {
uint32_t user_time; /* in milliseconds */
uint32_t system_time; /* in milliseconds */
uint64_t mem_used;
uint64_t mem_max;
uint32_t fd_open;
uint32_t fd_max;
uint32_t conn_open;
uint32_t conn_max;
} SFLAPPResources_counters;
#define SFL_CTR_APP_RESOURCES_XDR_SIZE 40
/* OVS datapath stats */
typedef struct _SFLOVSDP_counters {
uint32_t n_hit;
uint32_t n_missed;
uint32_t n_lost;
uint32_t n_mask_hit;
uint32_t n_flows;
uint32_t n_masks;
} SFLOVSDP_counters;
#define SFL_CTR_OVSDP_XDR_SIZE 24
/* Counters data */
enum SFLCounters_type_tag {
@@ -554,7 +582,9 @@ enum SFLCounters_type_tag {
SFLCOUNTERS_VLAN = 5,
SFLCOUNTERS_LACP = 7,
SFLCOUNTERS_OPENFLOWPORT = 1004,
SFLCOUNTERS_PORTNAME = 1005
SFLCOUNTERS_PORTNAME = 1005,
SFLCOUNTERS_APP_RESOURCES = 2203,
SFLCOUNTERS_OVSDP = 2207
};
typedef union _SFLCounters_type {
@@ -566,6 +596,8 @@ typedef union _SFLCounters_type {
SFLLACP_counters lacp;
SFLOpenFlowPort ofPort;
SFLPortName portName;
SFLAPPResources_counters appResources;
SFLOVSDP_counters ovsdp;
} SFLCounters_type;
typedef struct _SFLCounters_sample_element {