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Reformat, fix a bug due to confusing p and pointer in calibrate two thread and add relaod support

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This commit is contained in:
GuillaumeDIDIER 2020-07-07 15:07:55 +02:00
parent d47a7167ff
commit daaca820fd
2 changed files with 134 additions and 90 deletions
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43
cache_utils/src/bin/two_thread_cal.rs
View File

@ -1,12 +1,16 @@
use core::sync::atomic::{AtomicBool,Ordering};
use cache_utils::calibration::{
calibrate_fixed_freq_2_thread, flush_and_reload, load_and_flush, only_flush, only_reload,
reload_and_flush, CalibrateOperation2T, HistParams, Verbosity, CFLUSH_BUCKET_NUMBER,
CFLUSH_BUCKET_SIZE, CFLUSH_NUM_ITER,
};
use cache_utils::mmap::MMappedMemory;
use cache_utils::{flush, maccess, noop};
use core::sync::atomic::spin_loop_hint;
use core::sync::atomic::{AtomicBool, Ordering};
use nix::sched::{sched_getaffinity, CpuSet};
use nix::unistd::Pid;
use std::sync::Arc;
use std::thread;
use cache_utils::mmap::MMappedMemory;
use nix::sched::{CpuSet, sched_getaffinity};
use cache_utils::calibration::{calibrate_fixed_freq_2_thread, CalibrateOperation2T, load_and_flush, HistParams, CFLUSH_BUCKET_NUMBER, CFLUSH_BUCKET_SIZE, CFLUSH_NUM_ITER, Verbosity, only_flush};
use cache_utils::{maccess, noop, flush};
use nix::unistd::Pid;
/*
fn wait(turn_lock: &AtomicBool, turn: bool) {
@ -117,7 +121,8 @@ fn main() {
if pointer as usize & (cache_line_size - 1) != 0 {
panic!("not aligned nicely");
}
calibrate_fixed_freq_2_thread(pointer,
calibrate_fixed_freq_2_thread(
pointer,
64,
array.len() as isize,
&mut core_pairs.into_iter(),
@ -158,6 +163,30 @@ fn main() {
name: "clflush_local_hit_n",
display_name: "clflush local hit - n",
},
CalibrateOperation2T {
prepare: noop::<u8>,
op: flush_and_reload,
name: "reload_miss",
display_name: "reload miss",
},
CalibrateOperation2T {
prepare: multiple_access,
op: reload_and_flush,
name: "reload_remote_hit",
display_name: "reload remote hit",
},
CalibrateOperation2T {
prepare: multiple_access,
op: only_reload,
name: "reload_shared_hit",
display_name: "reload shared hit",
},
CalibrateOperation2T {
prepare: noop::<u8>,
op: only_reload,
name: "reload_local_hit",
display_name: "reload local hit",
},
],
HistParams {
bucket_number: CFLUSH_BUCKET_NUMBER,

79
cache_utils/src/calibration.rs
View File

@ -1,6 +1,6 @@
#![allow(clippy::missing_safety_doc)]
use crate::complex_addressing::{cache_slicing};
use crate::complex_addressing::cache_slicing;
use crate::{flush, maccess, rdtsc_fence};
use cpuid::MicroArchitecture;
@ -18,24 +18,23 @@ use nix::unistd::Pid;
//#[cfg(feature = "use_std")]
//use nix::Error::Sys;
#[cfg(feature = "use_std")]
use nix::Error;
#[cfg(feature = "use_std")]
use std::sync::Arc;
#[cfg(feature = "use_std")]
use std::thread;
#[cfg(feature = "use_std")]
use nix::Error;
extern crate alloc;
use crate::calibration::Verbosity::*;
use alloc::vec;
use alloc::vec::Vec;
use core::cmp::min;
use core::ptr::null_mut;
use core::sync::atomic::{spin_loop_hint, AtomicBool, AtomicPtr, Ordering};
use itertools::Itertools;
use core::sync::atomic::{AtomicPtr, AtomicBool, Ordering, spin_loop_hint};
use core::ptr::{/*null,*/ null_mut};
use atomic::Atomic;
#[derive(Ord, PartialOrd, Eq, PartialEq)]
pub enum Verbosity {
NoOutput,
@ -61,6 +60,12 @@ pub unsafe fn flush_and_reload(p: *const u8) -> u64 {
only_reload(p)
}
pub unsafe fn reload_and_flush(p: *const u8) -> u64 {
let r = only_reload(p);
flush(p);
r
}
pub unsafe fn only_flush(p: *const u8) -> u64 {
let t = rdtsc_fence();
flush(p);
@ -272,8 +277,6 @@ fn calibrate_impl_fixed_freq(
let to_bucket = |time: u64| -> usize { time as usize / hist_params.bucket_size };
let from_bucket = |bucket: usize| -> u64 { (bucket * hist_params.bucket_size) as u64 };
let slicing = if let Some(uarch) = MicroArchitecture::get_micro_architecture() {
Some(cache_slicing(uarch, 8))
} else {
@ -470,7 +473,15 @@ pub unsafe fn calibrate_fixed_freq_2_thread<I: Iterator<Item = (usize, usize)>>(
hist_params: HistParams,
verbosity_level: Verbosity,
) -> Vec<CalibrateResult2T> {
calibrate_fixed_freq_2_thread_impl(p, increment, len, cores, operations, hist_params, verbosity_level)
calibrate_fixed_freq_2_thread_impl(
p,
increment,
len,
cores,
operations,
hist_params,
verbosity_level,
)
}
#[cfg(feature = "use_std")]
@ -521,8 +532,6 @@ fn calibrate_fixed_freq_2_thread_impl<I: Iterator<Item = (usize, usize)>>(
address: AtomicPtr::new(null_mut()),
});
if verbosity_level >= Thresholds {
print!("CSV: main_core, helper_core, address, ");
if h.is_some() {
@ -565,47 +574,57 @@ fn calibrate_fixed_freq_2_thread_impl<I: Iterator<Item = (usize, usize)>>(
// set main thread affinity
if verbosity_level >= Thresholds {
println!("Calibration for main_core {}, helper {}.", main_core, helper_core);
println!(
"Calibration for main_core {}, helper {}.",
main_core, helper_core
);
}
eprintln!("Calibration for main_core {}, helper {}.", main_core, helper_core);
eprintln!(
"Calibration for main_core {}, helper {}.",
main_core, helper_core
);
let mut core = CpuSet::new();
match core.set(main_core) {
Ok(_) => {},
Ok(_) => {}
Err(e) => {
ret.push(CalibrateResult2T{main_core, helper_core, res:Err(e)});
ret.push(CalibrateResult2T {
main_core,
helper_core,
res: Err(e),
});
continue;
}
}
match sched_setaffinity(Pid::from_raw(0), &core) {
Ok(_) => {},
Ok(_) => {}
Err(e) => {
ret.push(CalibrateResult2T{main_core, helper_core, res:Err(e)});
ret.push(CalibrateResult2T {
main_core,
helper_core,
res: Err(e),
});
continue;
}
}
helper_thread_params.stop.store(false, Ordering::Relaxed);
// set up the helper thread
let htp = helper_thread_params.clone();
let hc = helper_core;
let helper_thread = thread::spawn(move || {
calibrate_fixed_freq_2_thread_helper(htp, hc)
});
let helper_thread = thread::spawn(move || calibrate_fixed_freq_2_thread_helper(htp, hc));
// do the calibration
let mut calibrate_result_vec = Vec::new();
for i in (0..len).step_by(increment) {
let pointer = unsafe { p.offset(i) };
helper_thread_params.address.store(p as *mut u8, Ordering::Relaxed);
helper_thread_params
.address
.store(pointer as *mut u8, Ordering::Relaxed);
let hash = h.map(|h| h(pointer as usize));
@ -627,8 +646,6 @@ fn calibrate_fixed_freq_2_thread_impl<I: Iterator<Item = (usize, usize)>>(
};
calibrate_result.histogram.reserve(operations.len());
for op in operations {
helper_thread_params.op.store(op.prepare, Ordering::Relaxed);
let mut hist = vec![0; hist_params.bucket_number];
@ -721,7 +738,7 @@ fn calibrate_fixed_freq_2_thread_impl<I: Iterator<Item = (usize, usize)>>(
ret.push(CalibrateResult2T {
main_core,
helper_core,
res: Ok(calibrate_result_vec)
res: Ok(calibrate_result_vec),
});
// terminate the thread
helper_thread_params.stop.store(true, Ordering::Relaxed);
@ -729,7 +746,6 @@ fn calibrate_fixed_freq_2_thread_impl<I: Iterator<Item = (usize, usize)>>(
wait(&helper_thread_params.turn, false);
// join thread.
helper_thread.join();
}
sched_setaffinity(Pid::from_raw(0), &old).unwrap();
@ -754,17 +770,16 @@ fn calibrate_fixed_freq_2_thread_helper(
// set thread affinity
let mut core = CpuSet::new();
match core.set(helper_core) {
Ok(_) => {},
Ok(_) => {}
Err(_e) => {
unimplemented!();
}
}
match sched_setaffinity(Pid::from_raw(0), &core) {
Ok(_) => {},
Ok(_) => {}
Err(_e) => {
unimplemented!();
}
}