[Verse 1]
Deep beneath your filesystem's gleaming surface
Block layer waits with ancient purpose
Every read and write must pass inspection
Queue mechanics need protection
CFQ divides the hungry processes
Fair share doctrine never stresses
Round-robin wisdom keeps things balanced
No single task leaves others stranded
[Chorus]
Schedulers spinning, disk heads dancing
CFQ, Deadline, NOOP advancing
Seek time's the enemy we're defeating
Random access needs completing
Memory the pattern, sing the order
Block layer guards the storage border
[Verse 2]
Deadline scheduler plays by different rules
Real-time constraints are sharper tools
Read requests get priority seating
Write operations keep on waiting
Starvation protection sets the timer
Latency bounds grow ever finer
FIFO queues with expiration
Guarantee response duration
[Chorus]
Schedulers spinning, disk heads dancing
CFQ, Deadline, NOOP advancing
Seek time's the enemy we're defeating
Random access needs completing
Memory the pattern, sing the order
Block layer guards the storage border
[Bridge]
NOOP says simple is the answer
No reordering, straight romancer
SSD storage needs no sorting
Sequential streams keep dataporting
Elevator algorithms climbing
Optimizing access timing
[Verse 3]
Merge adjacent blocks together
Reduce the seeks in stormy weather
I/O batching cuts the chatter
Physical geometry matters
Rotational delay calculating
While the hungry apps keep waiting
[Chorus]
Schedulers spinning, disk heads dancing
CFQ, Deadline, NOOP advancing
Seek time's the enemy we're defeating
Random access needs completing
Memory the pattern, sing the order
Block layer guards the storage border
[Outro]
Block requests flow through the funnel
Scheduler picks the fastest tunnel
Performance tuned by algorithm's grace
Every disk gets its rightful place