tests: Fix minor issue in the config yaml file testing (#20005)

Convert x86_64 to amd64 in the test script to correctly download mc binary.

docs/distributed/distributed-from-config-file.sh

@@ -22,6 +22,12 @@ export MINIO_CI_CD=1
 if [ ! -f ./mc ]; then
 	os="$(uname -s)"
 	arch="$(uname -m)"
+	case "${arch}" in
+	"x86_64")
+		arch="amd64"
+		;;
+	esac
+
 	wget -O mc https://dl.minio.io/client/mc/release/${os,,}-${arch,,}/mc &&
 		chmod +x mc
 fi

docs/tuning/README.md

@@ -0,0 +1,26 @@
+# How to enable 'minio' performance profile with tuned?
+
+## Prerequisites
+
+Please make sure the following packages are already installed via `dnf` or `apt`: 
+
+- `tuned`
+- `curl`
+
+### Install `tuned.conf` performance profile
+
+#### Step 1 - download `tuned.conf` from the referenced link
+```
+wget https://raw.githubusercontent.com/minio/minio/master/docs/tuning/tuned.conf
+```
+
+#### Step 2 - install tuned.conf as supported performance profile on all nodes
+```
+sudo mkdir -p /usr/lib/tuned/minio/
+sudo mv tuned.conf /usr/lib/tuned/minio
+```
+
+#### Step 3 - to enable minio performance profile on all the nodes
+```
+sudo tuned-admin profile minio
+```

docs/tuning/tuned.conf

@@ -0,0 +1,81 @@
+[main]
+summary=Maximum server performance for MinIO
+
+[vm]
+transparent_hugepage=madvise
+transparent_hugepage.defrag=defer+madvise
+transparent_hugepage.khugepaged.max_ptes_none=0
+
+[cpu]
+force_latency=1
+governor=performance
+energy_perf_bias=performance
+min_perf_pct=100
+
+[sysctl]
+fs.xfs.xfssyncd_centisecs=72000
+net.core.busy_read=50
+net.core.busy_poll=50
+kernel.numa_balancing=1
+
+# Do not use swap at all
+vm.swappiness=0
+vm.vfs_cache_pressure=50
+
+# Start writeback at 3% memory
+vm.dirty_background_ratio=3
+# Force writeback at 10% memory
+vm.dirty_ratio=10
+
+# Quite a few memory map
+# areas may be consumed
+vm.max_map_count=524288
+
+# Default is 500000 = 0.5ms
+kernel.sched_migration_cost_ns=5000000
+
+# stalled hdd io threads
+kernel.hung_task_timeout_secs=85
+
+# network tuning for bigger throughput
+net.core.netdev_max_backlog=250000
+net.core.somaxconn=16384
+net.ipv4.tcp_syncookies=0
+net.ipv4.tcp_max_syn_backlog=16384
+net.core.wmem_max=4194304
+net.core.rmem_max=4194304
+net.core.rmem_default=4194304
+net.core.wmem_default=4194304
+net.ipv4.tcp_rmem="4096 87380 4194304"
+net.ipv4.tcp_wmem="4096 65536 4194304"
+
+# Reduce CPU utilization
+net.ipv4.tcp_timestamps=0
+
+# Increase throughput
+net.ipv4.tcp_sack=1
+
+# Low latency mode for TCP
+net.ipv4.tcp_low_latency=1
+
+# The following variable is used to tell the kernel how 
+# much of the socket buffer space should be used for TCP 
+# window size, and how much to save for an application buffer.
+net.ipv4.tcp_adv_win_scale=1
+
+# disable RFC2861 behavior
+net.ipv4.tcp_slow_start_after_idle = 0
+
+# Fix faulty network setups
+net.ipv4.tcp_mtu_probing=1
+net.ipv4.tcp_base_mss=1280
+
+# Disable ipv6
+net.ipv6.conf.all.disable_ipv6=1
+net.ipv6.conf.default.disable_ipv6=1
+net.ipv6.conf.lo.disable_ipv6=1
+
+[bootloader]
+# Avoid firing timers for all CPUs at the same time. This is irrelevant for
+# full nohz systems
+cmdline=skew_tick=1