Restore calls to self.block_on in cosmos chain impl (#539)

* Introduce time! macro to measure time spent in a scope

* Restore calls to self.block_on in cosmos chain impl

* Fix doc test

* Simplify signature of CosmosSDKChain::block_on

* Update changelog

* Cleanup relayer operation instructions

* Add profiling instructions to the operation instructions

* Trim trailing whitespaces in operation instructions

* Update instructions to checkout Gaia v3.0.0

Co-authored-by: Anca Zamfir <ancazamfir@users.noreply.github.com>

Co-authored-by: Anca Zamfir <ancazamfir@users.noreply.github.com>

CHANGELOG.md

@@ -20,17 +20,17 @@
   - Add `packet-send` CLI ([#470])
 
 - [relayer]
-  - Performance improvements ([#514])
+  - Performance improvements ([#514], [#537])
   - Fix for mismatching `bitcoin` dep ([#525])
 
 - [modules]
-  - Clean the validate_basic method ([#94])
-  - MsgConnectionOpenAck testing improvements ([#306])
+  - Clean the `validate_basic` method ([#94])
+  - `MsgConnectionOpenAck` testing improvements ([#306])
 
 ### BUG FIXES:
 
 - [modules]
-  - Fix for storing ClientType upon 'create-client' ([#513])
+  - Fix for storing `ClientType` upon 'create-client' ([#513])
 
 [#94]: https://github.com/informalsystems/ibc-rs/issues/94
 [#306]: https://github.com/informalsystems/ibc-rs/issues/306
@@ -44,6 +44,7 @@
 [#517]: https://github.com/informalsystems/ibc-rs/issues/517
 [#525]: https://github.com/informalsystems/ibc-rs/issues/525
 [#527]: https://github.com/informalsystems/ibc-rs/issues/527
+[#537]: https://github.com/informalsystems/ibc-rs/issues/537
 
 
 ## v0.0.6

relayer-cli/Cargo.toml

@@ -6,10 +6,14 @@ authors = [
   "Informal Systems <hello@informal.systems>"
 ]
 
+[features]
+profiling = ["relayer/profiling"]
+
 [dependencies]
 relayer = { path = "../relayer" }
 ibc = { path = "../modules" }
 ibc-proto = { version = "0.6.0", path = "../proto" }
+
 anomaly = "0.2.0"
 gumdrop = "0.7"
 serde = { version = "1", features = ["serde_derive"] }