From 1121c67a4eb3ae32fab8b85c59301663cc713e30 Mon Sep 17 00:00:00 2001 From: Astro Date: Mon, 22 Jun 2020 02:06:11 +0200 Subject: [PATCH] experiments: setup_l2cache(), add bandwidth tester --- experiments/src/main.rs | 59 ++++++++++++++++++++++++++++++++--------- 1 file changed, 46 insertions(+), 13 deletions(-) diff --git a/experiments/src/main.rs b/experiments/src/main.rs index 7938e95..4ce7db5 100644 --- a/experiments/src/main.rs +++ b/experiments/src/main.rs @@ -15,6 +15,7 @@ use libboard_zynq::{ clocks::source::{ArmPll, ClockSource, IoPll}, clocks::Clocks, print, println, + setup_l2cache, sdio::sd_card::SdCard, smoltcp::{ self, @@ -81,6 +82,8 @@ pub fn main_core0() { clocks.cpu_2x(), clocks.cpu_1x() ); + info!("Setup L2Cache"); + setup_l2cache(); let sd = libboard_zynq::sdio::SDIO::sdio0(true); // only test SD card if it is inserted @@ -179,10 +182,10 @@ pub fn main_core0() { let eth = zynq::eth::Eth::default(HWADDR.clone()); println!("Eth on"); - const RX_LEN: usize = 8; + const RX_LEN: usize = 4096; // Number of transmission buffers (minimum is two because with // one, duplicate packet transmission occurs) - const TX_LEN: usize = 8; + const TX_LEN: usize = 4096; let eth = eth.start_rx(RX_LEN); let mut eth = eth.start_tx(TX_LEN); @@ -237,18 +240,42 @@ pub fn main_core0() { Ok(()) } - let counter = alloc::rc::Rc::new(core::cell::RefCell::new(0)); + // (rx, tx) + let stats = alloc::rc::Rc::new(core::cell::RefCell::new((0, 0))); + let stats_tx = stats.clone(); task::spawn(async move { - while let Ok(stream) = TcpStream::accept(TCP_PORT, 2048, 2408).await { - let counter = counter.clone(); + while let Ok(stream) = TcpStream::accept(TCP_PORT, 0x10_0000, 0x10_0000).await { + let stats_tx = stats_tx.clone(); task::spawn(async move { - *counter.borrow_mut() += 1; - println!("Serving {} connections", *counter.borrow()); - handle_connection(stream) - .await - .unwrap_or_else(|e| println!("Connection: {:?}", e)); - *counter.borrow_mut() -= 1; - println!("Now serving {} connections", *counter.borrow()); + let tx_data = (0..=255).take(4096).collect::>(); + loop { + // const CHUNK_SIZE: usize = 65536; + // match stream.send((0..=255).cycle().take(CHUNK_SIZE)).await { + match stream.send_slice(&tx_data[..]).await { + Ok(len) => stats_tx.borrow_mut().1 += tx_data.len(), //CHUNK_SIZE, + Err(e) => { + warn!("tx: {:?}", e); + break + } + } + } + }); + } + }); + let stats_rx = stats.clone(); + task::spawn(async move { + while let Ok(stream) = TcpStream::accept(TCP_PORT+1, 0x10_0000, 0x10_0000).await { + let stats_rx = stats_rx.clone(); + task::spawn(async move { + loop { + match stream.recv(|buf| Poll::Ready((buf.len(), buf.len()))).await { + Ok(len) => stats_rx.borrow_mut().0 += len, + Err(e) => { + warn!("rx: {:?}", e); + break + } + } + } }); } }); @@ -261,7 +288,13 @@ pub fn main_core0() { let timestamp = timer.get_us(); let seconds = timestamp / 1_000_000; let micros = timestamp % 1_000_000; - info!("time: {:6}.{:06}s", seconds, micros); + let (rx, tx) = { + let mut stats = stats.borrow_mut(); + let result = *stats; + *stats = (0, 0); + result + }; + info!("time: {:6}.{:06}s, rx: {}k/s, tx: {}k/s", seconds, micros, rx / 1024, tx / 1024); } });