eRPC Alternatives
Similar projects and alternatives to eRPC
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WorkOS
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protobuf
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bakelite
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InfluxDB
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areg-sdk
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eRPC reviews and mentions
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Are You Sure You Want to Use MMAP in Your Database Management System?
The most common example is DPDK [1]. It's a framework for building bespoke networking stacks that are usable from userspace, without involving the kernel.
You'll find DPDK mentioned a lot in the networking/HPC/data center literature. An example of a backend framework that uses DPDK is the seastar framework [2]. Also, I recently stumbled upon a paper for efficient RPC networks in data centers [3].
If you want to learn more, the p99 conference by ScyllaDB has tons of speakers talking about some interesting challenges.
[1] https://www.dpdk.org/.
[2] https://github.com/scylladb/seastar
[3] https://github.com/erpc-io/eRPC
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Zero-copy network transmission with io_uring
My side project has been to rewrite https://github.com/erpc-io/eRPC which does RPCs over UDP with some congestion control supposedly quite fast. Paper: https://www.usenix.org/system/files/nsdi19-kalia.pdf. I never got the code to work in AWS; I believe the author focused on Mellanox NICS but that's not really commodity H/W, which is where my interests lay.
So I dug into it .. and well I'll have my own library soon. I should be able to send UDP w/o congestion control sometime this week.
eRPC uses DPDK (100% user space NIC TX/RX control) plus the author's own other ideas to get performance. Since I'm getting into NICs + DPDK (in a serious way i.e this much more involved than vanilla sys/socket.h I/O) way, way late in the game, I hope and believe DPDK is, in the medium term, the better way to go than to turn to kernel improvements in for I/O.
Like others, getting the kernel out of the way, with pinned threads seems cleaner if one can develop from scratch.
This library will be a part of something bigger, however, a key architecture point for many people is: I got a RPC/packet/message. Now should I:
* process it in-place e.g. on the thread that was doing RX?
* delegate it to another core?
* if I delegate .. to whom?
* If I delegate how do I get a response back?
In DPDK I believe these are easier to decide and well-manage in code.
Stats
erpc-io/eRPC is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.
The primary programming language of eRPC is C++.
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