USB R/W Speeds drop to 1/3 using encryption

[hvalentim]

I noticed the following:

1 - If I plug my USB Memory Stick to the USB 3.0 port of my TV and use it as external storage (extfat formated) speeds are something like.:

Read: 120 Mb/s

Write: 30 Mb/s

2 - If I let the TV format/encrypt it and use it to extend internal memory and install apps, speeds drop dramatically to something like:

Read: 40 Mb/s

Write: 10 Mb/s

Is anyone else experiencing the same?

TV is model KD-55X8005C

USB Flash Drive is Samsung  USB 3.0 Flash Drive DUO 32GB

Benchmark app used is A1 SD Bench

Performance is similar in Androids v6 and v7

[Anonymous]

Hi there

As a guess, the performance hit is probably the encryption/decryption process.

Cheers

[Kuschelmonschter]

MediaTek SoC's in Sony Android TV are slow and buggy till this very day (USB, NIC, A/V,...). Don't expect this to change. Sony/MediaTek development is pretty dead. All you get is major Android updates which fix or improve nothing as problems lie within kernel and drivers...

[Jecht_Sin]

40 MB/s? With A1 SD Bench I have got 30 MB/s top w/o encryption (and my USB pen goes  up to 320/230MB/s  R/W in my MacBook). Copying a file with X-plore it went as low as 5MB/s. It started at 10MB/s, though.

[Kuschelmonschter]

Guess you are mixing up MByte/s and Mbit/s...

[Jecht_Sin]

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@Kuschelmonschter wrote:

Guess you are mixing up MByte/s and Mbit/s...

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? Why? We are talking about USB 3.0 drives, not internet speeds. Actually it is even faster than what I wrote