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We use FileServer.Net to setup SFTP server and the upload speed is too slow, only 200~300KB/s. We tried to set settings as below but no improvement. Is there any way to improve the performance?

service.Settings.UseLargeBuffers = true;
service.Settings.ReceiveBufferSize = 128 * 1024 * 1024; //128M
service.Settings.SendBufferSize = 128 * 1024 * 1024;

Applies to: Rebex SFTP

1 Answer

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Our latest release, Rebex File Server 2020 R5, increases server-side SFTP receive buffer size. The small buffer size of 128KB was not affected by server settings and caused slow speeds in some scenarios. Networks with high speed but relatively high latency were affected the most.