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Skip I/O scheduler optimization for Btrfs filesystems (openSUSE default)

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Mărcziem ™
2025-10-06 11:52:31 +02:00
parent 3344620824
commit fea282102d
1 changed files with 18 additions and 13 deletions
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31
lib/performance.sh
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@@ -41,20 +41,25 @@ EOF
# Apply kernel parameters # Apply kernel parameters
sudo sysctl -p sudo sysctl -p
# Optimize I/O scheduler for SSDs/HDDs # Optimize I/O scheduler for SSDs/HDDs (skip for Btrfs filesystems)
local disk_type=$(lsblk -d -o name,rota | awk 'NR>1 {if($2==0) print "ssd"; else print "hdd"; exit}') local root_fs_type=$(findmnt -n -o fstype /)
local root_disk=$(lsblk -no pkname $(findmnt -n -o source /) | head -n1) if [[ "$root_fs_type" == "btrfs" ]]; then
log_info "Btrfs filesystem detected - skipping I/O scheduler optimization (Btrfs handles I/O optimization internally)"
if [[ -n "$root_disk" ]] && [[ -w "/sys/block/$root_disk/queue/scheduler" ]]; then
if [[ "$disk_type" == "ssd" ]]; then
echo "mq-deadline" | sudo tee "/sys/block/$root_disk/queue/scheduler" > /dev/null
log_info "Optimized I/O scheduler for SSD"
else
echo "bfq" | sudo tee "/sys/block/$root_disk/queue/scheduler" > /dev/null
log_info "Optimized I/O scheduler for HDD"
fi
else else
log_warning "Could not determine or access root disk scheduler. Skipping I/O optimization." local disk_type=$(lsblk -d -o name,rota | awk 'NR>1 {if($2==0) print "ssd"; else print "hdd"; exit}')
local root_disk=$(lsblk -no pkname $(findmnt -n -o source / | sed 's/\[.*\]//') | head -n1)
if [[ -n "$root_disk" ]] && [[ -w "/sys/block/$root_disk/queue/scheduler" ]]; then
if [[ "$disk_type" == "ssd" ]]; then
echo "mq-deadline" | sudo tee "/sys/block/$root_disk/queue/scheduler" > /dev/null
log_info "Optimized I/O scheduler for SSD"
else
echo "bfq" | sudo tee "/sys/block/$root_disk/queue/scheduler" > /dev/null
log_info "Optimized I/O scheduler for HDD"
fi
else
log_warning "Could not determine or access root disk scheduler. Skipping I/O optimization."
fi
fi fi
# Create performance monitoring script # Create performance monitoring script