Expected throughput of AIOQUIC

[NikolayBlagoev]

What is the expected throughput of aioquic?

Not sure if I am doing something wrong here. I took the http3 example from the examples and modified the server to return to a post request a really large message (40 MB). Both the client and server are ran on my local machine, so there is no packet loss. I would expect such a transfer to take less than a second (as a baseline I used the streams native to asyncio). Yet, the throughput was barely 1 MB/s.

Am I missing something about this library? Or is this the intended throughput?

[rthalley]

On an M1 Max MacBook with Python 3.12.2 on loopback I see

2024-04-08 05:43:17,337 INFO client Response received for GET /foo : 41943040 bytes in 0.8 s (420.358 Mbps)

That's megabits in the measurement, so ~ 52.5 megabytes/s.

Without knowing just how you made your response or other details (aioquic version, OS, python version) it's hard to say more.

[cgalpin-tbsi]

I am seeing the same slow performance. Is there anything we can do to make this faster on Windows?

Using python 3.12.7, aioquic 1.2.0, on windows 11 business. I added this route to examples/demo.py

async def files(request):
    """
    Returns the file under htdocs/files.
    """
    file_path = os.path.join(STATIC_ROOT, "files", request.path_params["file"])
    if not os.path.exists(file_path):
        return Response(status_code=404)
    with open(file_path, "rb") as file:
        content = file.read()
    return Response(content, media_type="application/octet-stream")

...

Route("/files", files),

At best for larger files I get 9 Mbps when running the client and server in two different terminals on the same machine. I don't see any unreasonable cpu or memory or disk load while it runs so I do not believe it is resource constrained.

Dell Inspiron 16 Plus 7640
Processor: Intel(R) Core(TM) Ultra 7 155H 3.80 GHz
RAM: 64.0 GB (63.5 GB usable)
Disk: NVMe CT2000T500SSD8 SSD

python examples/http3_client.py --ca-certs tests/pycacert.pem https://localhost:4433/files/test.exe
2024-11-22 17:12:49,461 INFO quic [c70e83562e16d4a9] Negotiated protocol version 0x00000001 (VERSION_1)
2024-11-22 17:12:49,468 INFO quic [c70e83562e16d4a9] ALPN negotiated protocol h3
2024-11-22 17:12:49,469 INFO client New session ticket received
2024-11-22 17:12:49,471 INFO quic [c70e83562e16d4a9] Duplicate CRYPTO data received for epoch Epoch.ONE_RTT
2024-11-22 17:14:36,799 INFO client Response received for GET /files/test.exe : 125608464 bytes in 107.3 s (9.365 Mbps)
2024-11-22 17:14:36,842 INFO quic [c70e83562e16d4a9] Connection close sent (code 0x100, reason )

python examples/http3_client.py --ca-certs tests/pycacert.pem https://localhost:4433/files/test.zip
2024-11-23 08:23:54,876 INFO quic [d80047c58b9c1f24] Negotiated protocol version 0x00000001 (VERSION_1)
2024-11-23 08:23:54,883 INFO quic [d80047c58b9c1f24] ALPN negotiated protocol h3
2024-11-23 08:23:54,884 INFO client New session ticket received
2024-11-23 08:24:32,076 INFO client Response received for GET /files/test.zip : 44686157 bytes in 37.2 s (9.614 Mbps)
2024-11-23 08:24:32,102 INFO quic [d80047c58b9c1f24] Connection close sent (code 0x100, reason )

python examples/http3_client.py --ca-certs tests/pycacert.pem https://localhost:4433/files/test.zip
2024-11-23 08:24:53,140 INFO quic [5282581df9f64774] Negotiated protocol version 0x00000001 (VERSION_1)
2024-11-23 08:24:53,151 INFO quic [5282581df9f64774] ALPN negotiated protocol h3
2024-11-23 08:24:53,152 INFO client New session ticket received
2024-11-23 08:25:30,420 INFO client Response received for GET /files/test.zip : 44686157 bytes in 37.3 s (9.594 Mbps)
2024-11-23 08:25:30,437 INFO quic [5282581df9f64774] Connection close sent (code 0x100, reason )

python examples/http3_client.py --ca-certs tests/pycacert.pem https://localhost:4433/files/test.zip
2024-11-23 08:25:44,319 INFO quic [69a8868f55445d12] Negotiated protocol version 0x00000001 (VERSION_1)
2024-11-23 08:25:44,325 INFO quic [69a8868f55445d12] ALPN negotiated protocol h3
2024-11-23 08:25:44,326 INFO client New session ticket received
2024-11-23 08:26:36,962 INFO client Response received for GET /files/test.zip : 44686157 bytes in 52.6 s (6.793 Mbps)
2024-11-23 08:26:36,990 INFO quic [69a8868f55445d12] Connection close sent (code 0x100, reason )

[rthalley]

I will see if I can do some testing on a windows box