125 lines
4.1 KiB
Rust
125 lines
4.1 KiB
Rust
#![feature(test)]
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#![cfg(feature = "bpf_c")]
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extern crate test;
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use byteorder::{ByteOrder, LittleEndian, WriteBytesExt};
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use solana_rbpf::{EbpfVm};
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use std::{env, fs::File, io::Read, mem, path::PathBuf};
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use test::Bencher;
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/// BPF program file extension
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const PLATFORM_FILE_EXTENSION_BPF: &str = "so";
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/// Create a BPF program file name
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fn create_bpf_path(name: &str) -> PathBuf {
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let mut pathbuf = {
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let current_exe = env::current_exe().unwrap();
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PathBuf::from(current_exe.parent().unwrap().parent().unwrap())
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};
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pathbuf.push("bpf/");
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pathbuf.push(name);
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pathbuf.set_extension(PLATFORM_FILE_EXTENSION_BPF);
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pathbuf
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}
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fn empty_check(_prog: &[u8]) -> Result<(), solana_bpf_loader_program::BPFError> {
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Ok(())
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}
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fn load_elf() -> Result<Vec<u8>, std::io::Error> {
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let path = create_bpf_path("bench_alu");
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let mut file = File::open(&path).expect(&format!("Unable to open {:?}", path));
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let mut elf = Vec::new();
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file.read_to_end(&mut elf).unwrap();
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Ok(elf)
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}
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const ARMSTRONG_LIMIT: u64 = 500;
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const ARMSTRONG_EXPECTED: u64 = 5;
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#[bench]
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fn bench_program_load_elf(bencher: &mut Bencher) {
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let elf = load_elf().unwrap();
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let mut vm = EbpfVm::<solana_bpf_loader_program::BPFError>::new(None).unwrap();
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vm.set_verifier(empty_check).unwrap();
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bencher.iter(|| {
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vm.set_elf(&elf).unwrap();
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});
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}
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#[bench]
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fn bench_program_verify(bencher: &mut Bencher) {
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let elf = load_elf().unwrap();
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let mut vm = EbpfVm::<solana_bpf_loader_program::BPFError>::new(None).unwrap();
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vm.set_verifier(empty_check).unwrap();
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vm.set_elf(&elf).unwrap();
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bencher.iter(|| {
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vm.set_verifier(solana_bpf_loader_program::bpf_verifier::check)
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.unwrap();
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});
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}
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#[bench]
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fn bench_program_alu(bencher: &mut Bencher) {
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let ns_per_s = 1000000000;
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let one_million = 1000000;
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let mut inner_iter = vec![];
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inner_iter
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.write_u64::<LittleEndian>(ARMSTRONG_LIMIT)
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.unwrap();
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inner_iter.write_u64::<LittleEndian>(0).unwrap();
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let elf = load_elf().unwrap();
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let (mut vm, _) = solana_bpf_loader_program::create_vm(&elf).unwrap();
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println!("Interpreted:");
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assert_eq!(
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0, /*success*/
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vm.execute_program(&mut inner_iter, &[], &[]).unwrap()
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);
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assert_eq!(ARMSTRONG_LIMIT, LittleEndian::read_u64(&inner_iter));
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assert_eq!(
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ARMSTRONG_EXPECTED,
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LittleEndian::read_u64(&inner_iter[mem::size_of::<u64>()..])
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);
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bencher.iter(|| {
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vm.execute_program(&mut inner_iter, &[], &[]).unwrap();
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});
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let instructions = vm.get_last_instruction_count();
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let summary = bencher.bench(|_bencher| {}).unwrap();
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println!(" {:?} instructions", instructions);
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println!(" {:?} ns/iter median", summary.median as u64);
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assert!(0f64 != summary.median);
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let mips = (instructions * (ns_per_s / summary.median as u64)) / one_million;
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println!(" {:?} MIPS", mips);
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println!("{{ \"type\": \"bench\", \"name\": \"bench_program_alu_interpreted_mips\", \"median\": {:?}, \"deviation\": 0 }}", mips);
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// JIT disabled until address translation support is added
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// println!("JIT to native:");
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// vm.jit_compile().unwrap();
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// unsafe {
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// assert_eq!(
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// 0, /*success*/
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// vm.execute_program_jit(&mut inner_iter).unwrap()
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// );
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// }
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// assert_eq!(ARMSTRONG_LIMIT, LittleEndian::read_u64(&inner_iter));
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// assert_eq!(
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// ARMSTRONG_EXPECTED,
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// LittleEndian::read_u64(&inner_iter[mem::size_of::<u64>()..])
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// );
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// bencher.iter(|| unsafe {
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// vm.execute_program_jit(&mut inner_iter).unwrap();
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// });
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// let summary = bencher.bench(|_bencher| {}).unwrap();
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// println!(" {:?} instructions", instructions);
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// println!(" {:?} ns/iter median", summary.median as u64);
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// assert!(0f64 != summary.median);
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// let mips = (instructions * (ns_per_s / summary.median as u64)) / one_million;
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// println!(" {:?} MIPS", mips);
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// println!("{{ \"type\": \"bench\", \"name\": \"bench_program_alu_jit_to_native_mips\", \"median\": {:?}, \"deviation\": 0 }}", mips);
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}
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