[feature] #4089: Add profiling support to iroha

.dockerignore

@@ -1,2 +1,2 @@
 **/target
-Dockerfile
+Dockerfile*

CONTRIBUTING.md

@@ -266,6 +266,45 @@ tokio-console http://127.0.0.1:5555
 
 </details>
 
+### Profiling
+
+<details> <summary> Expand to learn ho to profile iroha. </summary>
+
+To optimize performance it's useful to profile iroha.
+
+To do that you should compile iroha with `profiling` profile and with `wasm_profiling` compilation flag: 
+
+```bash
+RUSTFLAGS="-C force-frame-pointers=on --cfg wasm_profiling" cargo build --profile profiling
+```
+
+Then start iroha and attach profiler of your choice to the iroha pid.
+
+Alternatively it's possible to build iroha inside docker with profiler support and profile iroha this way.
+
+```bash
+docker build -f Dockerfile.glibc --build-arg="PROFILE=profiling" --build-arg='RUSTFLAGS=-C force-frame-pointers=on --cfg wasm_profiling' -t iroha2:profiling .
+```
+
+E.g. using perf (available only on linux):
+
+```bash
+# to capture profile
+sudo perf record -g -p <PID>
+# to analyze profile
+sudo perf report
+```
+
+To be able to observe profile of the executor during iroha profiling, executor should be compiled without stripping symbols.
+It can be done by running:
+
+```bash
+# compile executor without optimizations
+cargo run --bin iroha_wasm_builder_cli -- build ./path/to/executor --outfile executor.wasm
+```
+
+</details>
+
 ## Style Guides
 
 Please follow these guidelines when you make code contributions to our project:

Cargo.toml

@@ -253,3 +253,7 @@ members = [
 inherits = "release"
 strip = "symbols"
 lto = true
+
+[profile.profiling]
+inherits = "release"
+debug = "line-tables-only"

Dockerfile.glibc

@@ -1,16 +1,13 @@
-#base stage
-FROM archlinux:base-devel AS builder
+# base stage
+FROM debian:bookworm-slim AS builder
 
-# Force-sync packages, install archlinux-keyring, repopulate keys
-RUN pacman -Syy
-RUN pacman -S archlinux-keyring --noconfirm --disable-download-timeout
-RUN rm -rf /etc/pacman.d/gnupg/* && pacman-key --init && pacman-key --populate archlinux
+# install required packages
+RUN apt-get update -y && \
+     apt-get install -y curl build-essential mold
 
-# Install updates
-RUN pacman -Syu --noconfirm --disable-download-timeout
-
-# Set up Rust toolchain
-RUN pacman -S rustup mold wget --noconfirm --disable-download-timeout
+# set up Rust toolchain
+RUN curl https://sh.rustup.rs -sSf | bash -s -- -y
+ENV PATH="/root/.cargo/bin:${PATH}"
 RUN rustup toolchain install nightly-2024-01-12
 RUN rustup default nightly-2024-01-12
 RUN rustup target add wasm32-unknown-unknown
@@ -19,15 +16,16 @@ RUN rustup component add rust-src
 # builder stage
 WORKDIR /iroha
 COPY . .
-RUN mold --run cargo build --target x86_64-unknown-linux-gnu --profile deploy
+ARG PROFILE="deploy"
+ARG RUSTFLAGS=""
+RUN RUSTFLAGS="${RUSTFLAGS}" mold --run cargo build --target x86_64-unknown-linux-gnu --profile "${PROFILE}"
 
 # final image
-FROM alpine:3.18
+FROM debian:bookworm-slim
 
-ENV  GLIBC_REPO=https://github.com/sgerrand/alpine-pkg-glibc
-ENV  GLIBC_VERSION=2.35-r1
+ARG PROFILE="deploy"
 ARG  STORAGE=/storage
-ARG  TARGET_DIR=/iroha/target/x86_64-unknown-linux-gnu/deploy
+ARG  TARGET_DIR=/iroha/target/x86_64-unknown-linux-gnu/${PROFILE}
 ENV  BIN_PATH=/usr/local/bin/
 ENV  CONFIG_DIR=/config
 ENV  IROHA2_CONFIG_PATH=$CONFIG_DIR/config.json
@@ -39,12 +37,9 @@ ENV  UID=1001
 ENV  GID=1001
 
 RUN  set -ex && \
-     apk --update add libstdc++ curl ca-certificates gcompat && \
-     for pkg in glibc-${GLIBC_VERSION} glibc-bin-${GLIBC_VERSION}; \
-         do curl -sSL ${GLIBC_REPO}/releases/download/${GLIBC_VERSION}/${pkg}.apk -o /tmp/${pkg}.apk; done && \
-     apk add --force-overwrite --allow-untrusted /tmp/*.apk && \
-     rm -v /tmp/*.apk && \
-     addgroup -g $GID $USER && \
+     apt-get update -y && \
+     apt-get install -y curl ca-certificates && \
+     addgroup --gid $GID $USER && \
      adduser \
      --disabled-password \
      --gecos "" \

core/src/smartcontracts/wasm.rs

@@ -274,6 +274,10 @@ fn create_config() -> Result<Config> {
         .consume_fuel(true)
         .cache_config_load_default()
         .map_err(Error::Initialization)?;
+    #[cfg(wasm_profiling)]
+    {
+        config.profiler(wasmtime::ProfilingStrategy::PerfMap);
+    }
     Ok(config)
 }