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SMB MC for Linux5
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articles/storage/files/smb-performance.md

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@@ -146,11 +146,7 @@ There are two categories of read/write workload patterns: single-threaded and mu
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- **Multi-threaded/multiple files**:
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Depending on the workload pattern, you should see significant performance improvement in read and write I/Os over multiple channels. The performance gains vary from anywhere between 2x to 4x in terms of IOPS, throughput, and latency. For this category, SMB Multichannel should be enabled for the best performance.
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- **Multi-threaded/single file**:
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For most use cases in this category, workloads benefit from having SMB Multichannel enabled, especially if the workload has an average I/O size > ~16k. A few example scenarios that benefit from SMB Multichannel are backup or recovery of a single large file. An exception where you might want to disable SMB Multichannel is if your workload is heavy on small I/Os. In that case, you might observe a slight performance loss of ~10%. Depending on the use case, consider spreading load across multiple files, or disable the feature.
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For most use cases in this category, workloads benefit from having SMB Multichannel enabled, especially if the workload has an average I/O size greater than 16 KiB. A few example scenarios that benefit from SMB Multichannel are backup or recovery of a single large file. An exception where you might want to disable SMB Multichannel is if your workload is heavy on small I/Os. In that case, you might observe a slight performance loss of 10%. Depending on the use case, consider spreading load across multiple files, or disable the feature. See the [Configuration](#configuration) section for details.
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- **Single-threaded/multiple files or single file**:
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For most single-threaded workloads, there are minimum performance benefits due to lack of parallelism. Usually there is a slight performance degradation of 10% if SMB Multichannel is enabled. In this case, it's ideal to disable SMB Multichannel, with one exception. If the single-threaded workload can distribute load across multiple files and uses on an average larger I/O size (greater than 16 KiB), then there should be slight performance benefits from SMB Multichannel.
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