Get Linux i/o scheduler and params

get_linux_scheduler.sh

for i in $(ls -1 /sys/block/ | grep -oE 'sd[a-z]|nvme.*'); do echo -n "$i: rotational: $(cat /sys/block/$i/queue/rotational) | \
scheduler: $(cat /sys/block/$i/queue/scheduler) | \
nr_requests: $(cat /sys/block/$i/queue/nr_requests) | \
rq_affinity: $(cat /sys/block/$i/queue/rq_affinity)"; [ -f "/sys/block/$i/queue/read_ahead_kb" ] && echo -n " | read_ahead_kb: $(cat /sys/block/$i/queue/read_ahead_kb)"; [ -f "/sys/block/$i/queue/iosched/writes_starved" ] && echo -n " | writes_starved: $(cat /sys/block/$i/queue/iosched/writes_starved)"; [ -f "/sys/block/$i/queue/iosched/read_expire" ] && echo -n " | read_expire: $(cat /sys/block/$i/queue/iosched/read_expire)"; echo ""; done #| awk '!(NR%2){print p "\t\t\t" $0}{p=$0}'