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Copy file name to clipboardExpand all lines: articles/azure-cache-for-redis/cache-planning-faq.yml
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Azure Cache for Redis performance
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answer: |
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The following tables show the maximum throughput values that were observed while testing various sizes of Standard, Premium, Enterprise, and Enterprise Flash caches. We used `redis-benchmark.exe` from an IaaS VM against the Azure Cache for Redis endpoint. For TLS throughput, redis-benchmark is used with *stunnel* to connect to the Azure Cache for Redis endpoint.
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>[!IMPORTANT]
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>These values aren't guaranteed and there's no SLA for these numbers. We strongly recommend that you should [perform your own performance testing](cache-best-practices-performance.md) to determine the right cache size for your application.
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>These numbers might change as we post newer results periodically.
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>
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From this table, we can draw the following conclusions:
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* Throughput numbers are for GETS.
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* Throughput for the caches that are the same size is higher in the Premium tier as compared to the Standard tier. For example, with a 6 GB Cache, throughput of P1 is 180,000 requests per second (RPS) as compared to 100,000 RPS for C3.
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* With Redis clustering, throughput increases linearly as you increase the number of shards (nodes) in the cluster. For example, if you create a P4 cluster of 10 shards, then the available throughput is 400,000 * 10 = 4 million RPS.
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* Throughput for bigger key sizes is higher in the Premium tier as compared to the Standard Tier.
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| Pricing tier | Size | CPU cores | Available bandwidth | 1-KB value size | 1-KB value size |
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| --- | --- | --- | --- | --- | --- |
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| **Standard cache sizes** | | |**Megabits per sec (Mb/s) / Megabytes per sec (MB/s)** |**GET Requests per second Non-SSL** |**GET Requests per second SSL** |
| **Premium cache sizes** | |**CPU cores per shard** | **Megabits per sec (Mb/s) / Megabytes per sec (MB/s)** |**GET Requests per second Non-SSL, per shard** |**GET Requests per second SSL, per shard** |
> P5 instances in the China East and China North regions use 20 cores, not 32 cores.
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For instructions on setting up stunnel or downloading the Redis tools such as `redis-benchmark.exe`, see [How can I run Redis commands?](cache-development-faq.yml#how-can-i-run-redis-commands-).
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For guidance on how to benchmark the performance of your Azure Cache for Redis instance and for sample benchmarking numbers, please see the [Performance testing](cache-best-practices-performance.md#example-performance-benchmark-data) page.
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