Add XREADGROUP benchmark with NOACK option

- Add new test suite memtier_benchmark-stream-10M-entries-xreadgroup-count-100-noack.yml
- Tests XREADGROUP performance with NOACK flag to skip message acknowledgment tracking
- Uses same 10M stream entries setup as existing XREADGROUP test for comparison
- Fix YAML formatting inconsistencies across other stream benchmark files (indentation and quote styles)

Author: paulorsousa

redis_benchmarks_specification/test-suites/memtier_benchmark-stream-10M-entries-xreadgroup-count-100-noack.yml

@@ -0,0 +1,38 @@
+version: 0.4
+name: memtier_benchmark-stream-10M-entries-xreadgroup-count-100-noack
+description: "Runs memtier_benchmark, pre-loading Redis with 10M stream entries using XADD, creating a consumer group, then testing XREADGROUP performance with COUNT 100 and NOACK enabled."
+dbconfig:
+  configuration-parameters:
+    save: '""'
+  check:
+    keyspacelen: 1
+  preload_tool:
+    run_image: redislabs/memtier_benchmark:edge
+    tool: memtier_benchmark
+    arguments: '"--data-size" "100" --command "XADD stream-key * field __data__" --command-key-pattern="P" -n 50000 -c 50 -t 4 --hide-histogram'
+  init_commands:
+    - XGROUP CREATE stream-key test-group 0 MKSTREAM
+  resources:
+    requests:
+      memory: 4g
+  dataset_name: 1k-stream-entries-with-consumer-group
+  dataset_description: This dataset contains 1 stream key with 10M entries, each with a field containing 100 bytes of data, and a consumer group named 'test-group'.
+tested-commands:
+  - xreadgroup
+redis-topologies:
+  - oss-standalone
+build-variants:
+  - gcc:15.2.0-amd64-debian-bookworm-default
+  - gcc:15.2.0-arm64-debian-bookworm-default
+  - dockerhub
+clientconfig:
+  run_image: redislabs/memtier_benchmark:edge
+  tool: memtier_benchmark
+  arguments: --command="XREADGROUP GROUP test-group consumer1 COUNT 100 NOACK STREAMS stream-key >" --hide-histogram -n 1000 -c 25 -t 4
+  resources:
+    requests:
+      cpus: "4"
+      memory: 2g
+tested-groups:
+  - stream
+priority: 94

redis_benchmarks_specification/test-suites/memtier_benchmark-stream-10M-entries-xreadgroup-count-100.yml

@@ -1,6 +1,6 @@
 version: 0.4
 name: memtier_benchmark-stream-10M-entries-xreadgroup-count-100
-description: 'Runs memtier_benchmark, pre-loading Redis with 10M stream entries using XADD, creating a consumer group, then testing XREADGROUP performance with COUNT 100.'
+description: "Runs memtier_benchmark, pre-loading Redis with 10M stream entries using XADD, creating a consumer group, then testing XREADGROUP performance with COUNT 100."
 dbconfig:
   configuration-parameters:
     save: '""'
@@ -11,28 +11,28 @@ dbconfig:
     tool: memtier_benchmark
     arguments: '"--data-size" "100" --command "XADD stream-key * field __data__" --command-key-pattern="P" -n 50000 -c 50 -t 4 --hide-histogram'
   init_commands:
-  - XGROUP CREATE stream-key test-group 0 MKSTREAM
+    - XGROUP CREATE stream-key test-group 0 MKSTREAM
   resources:
     requests:
       memory: 4g
   dataset_name: 1k-stream-entries-with-consumer-group
   dataset_description: This dataset contains 1 stream key with 10M entries, each with a field containing 100 bytes of data, and a consumer group named 'test-group'.
 tested-commands:
-- xreadgroup
+  - xreadgroup
 redis-topologies:
-- oss-standalone
+  - oss-standalone
 build-variants:
-- gcc:15.2.0-amd64-debian-bookworm-default
-- gcc:15.2.0-arm64-debian-bookworm-default
-- dockerhub
+  - gcc:15.2.0-amd64-debian-bookworm-default
+  - gcc:15.2.0-arm64-debian-bookworm-default
+  - dockerhub
 clientconfig:
   run_image: redislabs/memtier_benchmark:edge
   tool: memtier_benchmark
   arguments: --command="XREADGROUP GROUP test-group consumer1 COUNT 100 STREAMS stream-key >" --hide-histogram -n 1000 -c 25 -t 4
   resources:
     requests:
-      cpus: '4'
+      cpus: "4"
       memory: 2g
 tested-groups:
-- stream
+  - stream
 priority: 94

redis_benchmarks_specification/test-suites/memtier_benchmark-stream-concurrent-xadd-xreadgroup-70-30.yml

@@ -1,7 +1,7 @@
 version: 0.4
 name: memtier_benchmark-stream-concurrent-xadd-xreadgroup-70-30
 description:
-  Starting with a pre-loaded stream of 500K entries, the benchmark tests concurrent stream operations with a consumer group for distributed processing.  
+  Starting with a pre-loaded stream of 500K entries, the benchmark tests concurrent stream operations with a consumer group for distributed processing.
   70% of commands produce messages with XADD, while 30% consume with XREADGROUP COUNT 10.
   500K initial entries plus 200K * 70% minus 200K * 10 * (15% + 15%) ≈ 40K left in the stream at the end.
 dbconfig: