ParPar
ParParGUI
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ParPar
- Getting "checksum mismatch" too often when creating pars with latest version of MultiPar
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AVX-512 Performance Comparison: AMD Genoa vs. Intel Sapphire Rapids & Ice Lake Review
PAR2 creation (file-based error correction): the core routine here is GF(2^16) matrix multiplication. AVX512 has the GF2P8AFFINEQB instruction, which isn't present on any GPU that I know of, but massively accelerates GF multiplication. Without this instruction, you have to resort to emulating it via bitwise operations or lookup tables, which are much slower. I actually have an OpenCL implementation, but its performance is rather meh compared to CPU
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Optimal par2 Switches for Mixed Data . .
Did you tried to use parpar for creating par2 files? Supposed to be much faster. https://github.com/animetosho/ParPar
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AMD EPYC 9554 & EPYC 9654 Benchmarks
I've been developing a performance oriented PAR2 tool (used for generating file-based redundancy for error correction), but without access to a lot of hardware, I don't have that much ability to tune it to various microarchitectures. Currently there's no real benchmark setup defined/implemented (though it shouldn't be hard to come up with one), and it certainly isn't tuned for the number of cores on EPYC, but I've never really thought PAR2 benchmarks would interest that many people.
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Analysing the Effectiveness of WinRAR's RAR5 Recovery Records
QuickPar is ancient at this stage, however the PAR2 format hasn't changed since, so the concepts are still the same. For a more modern client, I generally recommend MultiPar. I've also written a PAR2 client, ParPar (CLI, or experimental GUI frontend), but it only supports creating PAR2s, not verify/repair.
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What is the best method for file integrity preservation?
Also this implementation of par is the fastest I've seen (for creation only thought) https://github.com/animetosho/ParPar
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Fastest Parity creator on Linux
For PAR2, I did a benchmark comparison here of every tool, which you can use to make up your mind. par2j (Multipar) and phpar2 are Windows only, but work via Wine. ParPar only supports create, so you'll need to use a different client for verify/repair.
ParParGUI
- What blocksize do we use for large single files (20GB)?
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Analysing the Effectiveness of WinRAR's RAR5 Recovery Records
QuickPar is ancient at this stage, however the PAR2 format hasn't changed since, so the concepts are still the same. For a more modern client, I generally recommend MultiPar. I've also written a PAR2 client, ParPar (CLI, or experimental GUI frontend), but it only supports creating PAR2s, not verify/repair.
What are some alternatives?
UDPspeeder - A Tunnel which Improves your Network Quality on a High-latency Lossy Link by using Forward Error Correction, possible for All Traffics(TCP/UDP/ICMP)
MultiPar - Parchive tool
dvdisaster - A tool providing additional ECC protection for optical media (unofficial version)
automedia - A set of tools for automatically managing bitrot and format in large quantities of media
qr-asm - Generate a QR code from scratch with only ARM assembly.
dar-backup - Drive the fabulous Disk Archiver for full, differential or incremental backups with error correction + restore test.
FastHamming - Fast implementation for truncateable extended (127,120) Hamming codes
par2cmdline-turbo - par2cmdline × ParPar: speed focused par2cmdline fork
openbenchmarking
kcp-go - A Crypto-Secure, Production-Grade Reliable-UDP Library for golang with FEC