diff --git a/Dockerfile b/Dockerfile
index 43064ec2..0be52fd6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -41,30 +41,13 @@ RUN composer install --no-dev                       \
 RUN mv "$PHP_INI_DIR/php.ini-production" "$PHP_INI_DIR/php.ini"
 COPY ./docker/php.ini /usr/local/etc/php/conf.d/docker-z99-php.ini
 
-# Warmup caches
-RUN php ./docker/build-preloader.php && php ./docker/preload.php
-
 # Quick test
 RUN time ./csv-blueprint --version --ansi \
     && time ./csv-blueprint validate:csv --help --ansi
 
-#RUN time php ./docker/random-csv.php             \
+# Warmup caches
+#RUN php ./docker/build-preloader.php  \
+#    && php ./docker/preload.php \
 #    && echo "opcache.preload=./docker/preload.php" >> /usr/local/etc/php/conf.d/docker-z99-php.ini
-#    && time ./csv-blueprint validate:csv -h      \
-#    && time ./csv-blueprint validate:schema      \
-#      --schema=./schema-examples/*.yml           \
-#      --schema=./schema-examples/*.php           \
-#      --schema=./schema-examples/*.json -vvv     \
-#    && echo "Warm up is ready!"                  \
-
-#RUN time php ./docker/random-csv.php             \
-#    && time ./csv-blueprint validate:csv         \
-#      --schema=./schema-examples/full.yml        \
-#      --csv=./docker/random_data.csv             \
-#      --apply-all=yes                            \
-#      --report=text --mute-errors > /dev/null    \
-#    && echo "Tests are ready!"                   \
-#    && rm ./docker/random_data.csv               \
-#    && du -sh ./docker
 
 ENTRYPOINT ["/app/csv-blueprint"]
diff --git a/docker/php.ini b/docker/php.ini
index 17d37369..e3e3c355 100644
--- a/docker/php.ini
+++ b/docker/php.ini
@@ -21,7 +21,7 @@ opcache.fast_shutdown = 1
 opcache.memory_consumption = 100
 opcache.save_comments = 1
 opcache.jit_buffer_size=100M
-opcache.jit=1255
+opcache.jit=tracing
 
 ; Experimantal for really quick script start.
 ; Save opcache data as files on disk inside the Docker image
diff --git a/docker/random-csv.php b/docker/random-csv.php
deleted file mode 100644
index e89d3ff1..00000000
--- a/docker/random-csv.php
+++ /dev/null
@@ -1,42 +0,0 @@
-<?php
-
-/**
- * JBZoo Toolbox - Csv-Blueprint.
- *
- * This file is part of the JBZoo Toolbox project.
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- *
- * @license    MIT
- * @copyright  Copyright (C) JBZoo.com, All rights reserved.
- * @see        https://github.com/JBZoo/Csv-Blueprint
- */
-
-declare(strict_types=1);
-
-$rows = 1000;
-
-$filePath = __DIR__ . '/random_data.csv';
-
-$fileHandle = \fopen($filePath, 'w');
-
-if ($fileHandle === false) {
-    exit('Error opening the file');
-}
-
-$columns = ['Column Name (header)', 'another_column', 'inherited_column_login', 'inherited_column_full_name'];
-\fputcsv($fileHandle, $columns);
-
-for ($i = 0; $i < $rows; $i++) {
-    $rowData = [];
-
-    for ($j = 0; $j < \count($columns); $j++) {
-        $rowData[] = \random_int(1, 10000);
-    }
-
-    \fputcsv($fileHandle, $rowData);
-}
-
-\fclose($fileHandle);
-
-echo "CSV file created: {$filePath}.\n";