diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a8a3e1f754..fc4ae82088 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -94,7 +94,7 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: test
-          args: --release --all --no-fail-fast
+          args: --release --all --features ci_skip --no-fail-fast
 
   codecov:
     name: Code Coverage
@@ -123,7 +123,7 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: test
-          args: --all
+          args: --all --features ci_skip
         env:
           CARGO_NET_GIT_FETCH_WITH_CLI: true
           CARGO_INCREMENTAL: "0"
@@ -143,7 +143,7 @@ jobs:
           make install DESTDIR=../../kcov-build
           cd ../..
           rm -rf kcov-master
-          for file in target/debug/deps/*-*; do if [[ "$file" != *\.* ]]; then mkdir -p "target/cov/$(basename $file)"; ./kcov-build/usr/local/bin/kcov --exclude-pattern=/.cargo,/usr/lib --verify "target/cov/$(basename $file)" "$file"; fi done
+          for file in target/debug/deps/*-*; do if [[ "$file" != *\.* ]]; then mkdir -p "target/cov/$(basename $file)"; ./kcov-build/usr/local/bin/kcov --exclude-pattern=/.cargo,/usr/lib --exclude-region='@kcov_skip(start):@kcov_skip(end)' --verify "target/cov/$(basename $file)" "$file"; fi done
 
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v1
diff --git a/Cargo.lock b/Cargo.lock
index 9a84b18837..0ed371dfc6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -134,6 +134,24 @@ dependencies = [
  "byte-tools",
 ]
 
+[[package]]
+name = "bstr"
+version = "0.2.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "31accafdb70df7871592c058eca3985b71104e15ac32f64706022c58867da931"
+dependencies = [
+ "lazy_static",
+ "memchr",
+ "regex-automata",
+ "serde",
+]
+
+[[package]]
+name = "bumpalo"
+version = "3.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e8c087f005730276d1096a652e92a8bacee2e2472bcc9715a74d2bec38b5820"
+
 [[package]]
 name = "byte-tools"
 version = "0.3.1"
@@ -167,6 +185,15 @@ dependencies = [
  "pkg-config",
 ]
 
+[[package]]
+name = "cast"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4b9434b9a5aa1450faa3f9cb14ea0e8c53bb5d2b3c1bfd1ab4fc03e9f33fbfb0"
+dependencies = [
+ "rustc_version",
+]
+
 [[package]]
 name = "cc"
 version = "1.0.58"
@@ -241,6 +268,42 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "criterion"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70daa7ceec6cf143990669a04c7df13391d55fb27bd4079d252fca774ba244d8"
+dependencies = [
+ "atty",
+ "cast",
+ "clap",
+ "criterion-plot",
+ "csv",
+ "itertools 0.9.0",
+ "lazy_static",
+ "num-traits",
+ "oorandom",
+ "plotters",
+ "rayon",
+ "regex",
+ "serde",
+ "serde_cbor",
+ "serde_derive",
+ "serde_json",
+ "tinytemplate",
+ "walkdir",
+]
+
+[[package]]
+name = "criterion-plot"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e022feadec601fba1649cfa83586381a4ad31c6bf3a9ab7d408118b05dd9889d"
+dependencies = [
+ "cast",
+ "itertools 0.9.0",
+]
+
 [[package]]
 name = "crossbeam-deque"
 version = "0.7.3"
@@ -299,6 +362,28 @@ dependencies = [
  "subtle",
 ]
 
+[[package]]
+name = "csv"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00affe7f6ab566df61b4be3ce8cf16bc2576bca0963ceb0955e45d514bf9a279"
+dependencies = [
+ "bstr",
+ "csv-core",
+ "itoa",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "csv-core"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b2466559f260f48ad25fe6317b3c8dac77b5bdb5763ac7d9d6103530663bc90"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "derivative"
 version = "2.1.1"
@@ -464,6 +549,12 @@ version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aaf91faf136cb47367fa430cd46e37a788775e7fa104f8b4bcb3861dc389b724"
 
+[[package]]
+name = "half"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d36fab90f82edc3c747f9d438e06cf0a491055896f2a279638bb5beed6c40177"
+
 [[package]]
 name = "hashbrown"
 version = "0.8.1"
@@ -531,6 +622,15 @@ version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc6f3ad7b9d11a0c00842ff8de1b60ee58661048eb8049ed33c73594f359d7e6"
 
+[[package]]
+name = "js-sys"
+version = "0.3.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85a7e2c92a4804dd459b86c339278d0fe87cf93757fae222c3fa3ae75458bc73"
+dependencies = [
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "jsonrpc-core"
 version = "14.2.0"
@@ -583,6 +683,7 @@ dependencies = [
 name = "leo-ast"
 version = "0.1.0"
 dependencies = [
+ "criterion",
  "from-pest",
  "lazy_static",
  "log",
@@ -775,6 +876,12 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b631f7e854af39a1739f401cf34a8a013dfe09eac4fa4dba91e9768bd28168d"
 
+[[package]]
+name = "oorandom"
+version = "11.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a170cebd8021a008ea92e4db85a72f80b35df514ec664b296fdcbb654eac0b2c"
+
 [[package]]
 name = "opaque-debug"
 version = "0.2.3"
@@ -849,6 +956,18 @@ version = "0.3.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d36492546b6af1463394d46f0c834346f31548646f6ba10849802c9c9a27ac33"
 
+[[package]]
+name = "plotters"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d1685fbe7beba33de0330629da9d955ac75bd54f33d7b79f9a895590124f6bb"
+dependencies = [
+ "js-sys",
+ "num-traits",
+ "wasm-bindgen",
+ "web-sys",
+]
+
 [[package]]
 name = "podio"
 version = "0.1.7"
@@ -990,6 +1109,15 @@ dependencies = [
  "thread_local",
 ]
 
+[[package]]
+name = "regex-automata"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae1ded71d66a4a97f5e961fd0cb25a5f366a42a41570d16a763a69c092c26ae4"
+dependencies = [
+ "byteorder",
+]
+
 [[package]]
 name = "regex-syntax"
 version = "0.6.18"
@@ -1068,6 +1196,16 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde_cbor"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e18acfa2f90e8b735b2836ab8d538de304cbb6729a7360729ea5a895d15a622"
+dependencies = [
+ "half",
+ "serde",
+]
+
 [[package]]
 name = "serde_derive"
 version = "1.0.114"
@@ -1392,6 +1530,16 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "tinytemplate"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d3dc76004a03cec1c5932bca4cdc2e39aaa798e3f82363dd94f9adf6098c12f"
+dependencies = [
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "toml"
 version = "0.5.6"
@@ -1466,6 +1614,70 @@ version = "0.9.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 
+[[package]]
+name = "wasm-bindgen"
+version = "0.2.67"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0563a9a4b071746dd5aedbc3a28c6fe9be4586fb3fbadb67c400d4f53c6b16c"
+dependencies = [
+ "cfg-if",
+ "wasm-bindgen-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-backend"
+version = "0.2.67"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc71e4c5efa60fb9e74160e89b93353bc24059999c0ae0fb03affc39770310b0"
+dependencies = [
+ "bumpalo",
+ "lazy_static",
+ "log",
+ "proc-macro2 1.0.19",
+ "quote 1.0.7",
+ "syn 1.0.36",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.67"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97c57cefa5fa80e2ba15641578b44d36e7a64279bc5ed43c6dbaf329457a2ed2"
+dependencies = [
+ "quote 1.0.7",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.67"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "841a6d1c35c6f596ccea1f82504a192a60378f64b3bb0261904ad8f2f5657556"
+dependencies = [
+ "proc-macro2 1.0.19",
+ "quote 1.0.7",
+ "syn 1.0.36",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.67"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93b162580e34310e5931c4b792560108b10fd14d64915d7fff8ff00180e70092"
+
+[[package]]
+name = "web-sys"
+version = "0.3.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dda38f4e5ca63eda02c059d243aa25b5f35ab98451e518c51612cd0f1bd19a47"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
diff --git a/Cargo.toml b/Cargo.toml
index c232eb1ea0..cd948baa35 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -44,6 +44,10 @@ zip = { version = "0.5" }
 [dev-dependencies]
 rusty-hook = { version = "0.11.2" }
 
+[features]
+default = []
+ci_skip = ["leo-compiler/ci_skip"]
+
 [profile.release]
 opt-level = 3
 lto = "thin"
diff --git a/ast/Cargo.toml b/ast/Cargo.toml
index 0df56b73a9..2bc362ba40 100644
--- a/ast/Cargo.toml
+++ b/ast/Cargo.toml
@@ -20,3 +20,8 @@ serde_json = { version = "1.0" }
 thiserror = { version = "1.0" }
 
 [dev-dependencies]
+criterion = { version = "0.3" }
+
+[features]
+default = []
+ci_skip = []
diff --git a/ast/tests/serialization/json.rs b/ast/tests/serialization/json.rs
index 1e5a2386e1..f4844121e4 100644
--- a/ast/tests/serialization/json.rs
+++ b/ast/tests/serialization/json.rs
@@ -3,7 +3,8 @@ use leo_ast::LeoAst;
 use std::path::PathBuf;
 
 #[test]
-fn test_serialization() {
+#[cfg(not(feature = "ci_skip"))]
+fn test_serialize() {
     let mut program_filepath = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
     program_filepath.push("tests/serialization/main.leo");
 
diff --git a/compiler/Cargo.toml b/compiler/Cargo.toml
index 2d30b6305d..b4dc36fbf0 100644
--- a/compiler/Cargo.toml
+++ b/compiler/Cargo.toml
@@ -29,4 +29,8 @@ sha2 = { version = "0.9" }
 thiserror = { version = "1.0" }
 
 [dev-dependencies]
-num-bigint = { version = "0.3" }
\ No newline at end of file
+num-bigint = { version = "0.3" }
+
+[features]
+default = []
+ci_skip = ["leo-ast/ci_skip", "leo-types/ci_skip"]
diff --git a/types/Cargo.toml b/types/Cargo.toml
index 539617b3b5..f82cb0bdd0 100644
--- a/types/Cargo.toml
+++ b/types/Cargo.toml
@@ -18,3 +18,7 @@ snarkos-models =  { git = "ssh://git@github.com/AleoHQ/snarkOS.git", package = "
 pest = { version = "2.0" }
 serde = { version = "1.0" }
 serde_json = { version = "1.0" }
+
+[features]
+default = []
+ci_skip = ["leo-ast/ci_skip"]
diff --git a/types/tests/serialization/json.rs b/types/tests/serialization/json.rs
index 8cb96c4620..a5d5f82c9f 100644
--- a/types/tests/serialization/json.rs
+++ b/types/tests/serialization/json.rs
@@ -17,6 +17,7 @@ fn to_typed_ast(program_filepath: &PathBuf) -> LeoTypedAst {
 }
 
 #[test]
+#[cfg(not(feature = "ci_skip"))]
 fn test_serialize() {
     // Construct a typed syntax tree from the given test file.
     let typed_ast = {
@@ -37,6 +38,7 @@ fn test_serialize() {
 }
 
 #[test]
+#[cfg(not(feature = "ci_skip"))]
 fn test_deserialize() {
     // Load the expected typed syntax tree.
     let expected_typed_ast = {