diff --git a/Cargo.toml b/Cargo.toml
index 353d4a96a..d23ed6fda 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -95,10 +95,10 @@ members = [
   #"services/test-spawn/spawn",
   "services/usb-test",
   "services/usb-device-xous",
-  "tools/perflib",
   "kernel",
   "loader",
   "libs/chat",
+  "libs/perflib",
   "libs/userprefs",
   "libs/tls",
   "libs/xous-pio",
diff --git a/apps/vault/Cargo.toml b/apps/vault/Cargo.toml
index d39ddcc09..4e550c6f4 100644
--- a/apps/vault/Cargo.toml
+++ b/apps/vault/Cargo.toml
@@ -59,7 +59,7 @@ net = { path = "../../services/net" }
 com_rs = { git = "https://github.com/betrusted-io/com_rs", rev = "891bdd3ca8e41f81510d112483e178aea3e3a921" }
 
 # performance profiling
-perflib = { path = "../../tools/perflib", optional = true }
+perflib = { path = "../../libs/perflib", optional = true }
 utralib = { version = "0.1.24", optional = true, default-features = false }
 
 # testing
diff --git a/tools/perflib/Cargo.toml b/libs/perflib/Cargo.toml
similarity index 100%
rename from tools/perflib/Cargo.toml
rename to libs/perflib/Cargo.toml
diff --git a/tools/perflib/src/lib.rs b/libs/perflib/src/lib.rs
similarity index 100%
rename from tools/perflib/src/lib.rs
rename to libs/perflib/src/lib.rs
diff --git a/services/pddb/Cargo.toml b/services/pddb/Cargo.toml
index 2622a6cc0..4349e3a7e 100644
--- a/services/pddb/Cargo.toml
+++ b/services/pddb/Cargo.toml
@@ -52,7 +52,7 @@ modals = { path = "../modals" }
 utralib = { version = "0.1.24", optional = true, default-features = false }
 
 # performance profiling
-perflib = { path = "../../tools/perflib", optional = true }
+perflib = { path = "../../libs/perflib", optional = true }
 
 [target.'cfg(any(windows,unix))'.dependencies]
 rand = "0.8.5"
diff --git a/services/shellchat/Cargo.toml b/services/shellchat/Cargo.toml
index 45baa4007..4be0b9ad5 100644
--- a/services/shellchat/Cargo.toml
+++ b/services/shellchat/Cargo.toml
@@ -90,7 +90,7 @@ ring = { version = "0.16.20", optional = true }
 tungstenite = { version = "0.20.0", optional = true }
 
 # for performance testing
-perflib = { path = "../../tools/perflib", optional = true }
+perflib = { path = "../../libs/perflib", optional = true }
 random-pick = { version = "1.2.15", optional = true }
 
 # for the curve25519 tests