Files
pezkuwi-subxt/substrate/client/executor/src/integration_tests/linux.rs
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Bastian Köcher 7b56ab15b4 Run cargo fmt on the whole code base (#9394)
* Run cargo fmt on the whole code base

* Second run

* Add CI check

* Fix compilation

* More unnecessary braces

* Handle weights

* Use --all

* Use correct attributes...

* Fix UI tests

* AHHHHHHHHH

* 🤦

* Docs

* Fix compilation

* 🤷

* Please stop

* 🤦 x 2

* More

* make rustfmt.toml consistent with polkadot

Co-authored-by: André Silva <andrerfosilva@gmail.com>
2021-07-21 14:32:32 +00:00

68 lines
2.3 KiB
Rust

// This file is part of Substrate.
// Copyright (C) 2021 Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
//! Tests that are only relevant for Linux.
// Constrain this only to wasmtime for the time being. Without this rustc will complain on unused
// imports and items. The alternative is to plop `cfg(feature = wasmtime)` everywhere which seems
// borthersome.
#![cfg(feature = "wasmtime")]
use super::mk_test_runtime;
use crate::WasmExecutionMethod;
use codec::Encode as _;
mod smaps;
use self::smaps::Smaps;
#[test]
fn memory_consumption_compiled() {
// This aims to see if linear memory stays backed by the physical memory after a runtime call.
//
// For that we make a series of runtime calls, probing the RSS for the VMA matching the linear
// memory. After the call we expect RSS to be equal to 0.
let runtime = mk_test_runtime(WasmExecutionMethod::Compiled, 1024);
let instance = runtime.new_instance().unwrap();
let heap_base = instance
.get_global_const("__heap_base")
.expect("`__heap_base` is valid")
.expect("`__heap_base` exists")
.as_i32()
.expect("`__heap_base` is an `i32`");
fn probe_rss(instance: &dyn sc_executor_common::wasm_runtime::WasmInstance) -> usize {
let base_addr = instance.linear_memory_base_ptr().unwrap() as usize;
Smaps::new().get_rss(base_addr).expect("failed to get rss")
}
instance
.call_export("test_dirty_plenty_memory", &(heap_base as u32, 1u32).encode())
.unwrap();
let probe_1 = probe_rss(&*instance);
instance
.call_export("test_dirty_plenty_memory", &(heap_base as u32, 1024u32).encode())
.unwrap();
let probe_2 = probe_rss(&*instance);
assert_eq!(probe_1, 0);
assert_eq!(probe_2, 0);
}