[action] [PR:1527] Optimize counter initialization by reducing the number of bulk counter poll calls and communication between swss/sairedis #25
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…r poll calls and communication between swss/sairedis Optimize counter initialization by reducing the number of bulk counter poll calls and communication between swss(orchagent)/sairedis(syncd) during initialization. Originally, `orchagent` notifies `syncd` to initialize the counter using an extended sairedis call `SAI_REDIS_SWITCH_ATTR_FLEX_COUNTER` for each SAI object with the object ID as the key, which means the number of the extended sairedis calls is identical as the number of objects. It takes time to finish all the extended sairedis calls. Now, for counter groups that have many objects (e.g., port, PG, queues, etc), `orchagent` notifies `syncd` to initialize the counter using a single extend sairedis call with many objects' ID as the key (format: `<key1>,<key2>,...<keyn>`). So, it takes much less time to initialize the counters because fewer extend sairedis calls are required. Details: - In sairedis, the bulk counter is supported for all counter groups except `Buffer Pool Counter` and `DASH ENI counter`. - In swss, bulk counter for the following counter groups - priority group watermark - priority group drop - queue watermark - queue stat - PFC watchdog HLD sonic-net/SONiC#1862
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Original PR: sonic-net/sonic-sairedis#1527 |
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Optimize counter initialization by reducing the number of bulk counter poll calls and communication between swss(orchagent)/sairedis(syncd) during initialization.
Originally,
orchagentnotifiessyncdto initialize the counter using an extended sairedis callSAI_REDIS_SWITCH_ATTR_FLEX_COUNTERfor each SAI object with the object ID as the key, which means the number of the extended sairedis calls is identical as the number of objects. It takes time to finish all the extended sairedis calls.Now, for counter groups that have many objects (e.g., port, PG, queues, etc),
orchagentnotifiessyncdto initialize the counter using a single extend sairedis call with many objects' ID as the key (format:<key1>,<key2>,...<keyn>). So, it takes much less time to initialize the counters because fewer extend sairedis calls are required.Details:
In sairedis, the bulk counter is supported for all counter groups except
Buffer Pool CounterandDASH ENI counter.In swss, bulk counter for the following counter groups
HLD sonic-net/SONiC#1862