Deferred Until Eviction

A direct-mapped cache holds four 16-byte lines (64 bytes total) and is write-back with write-allocate. It starts empty. Every access below is 4 bytes wide.

#	op	address
1	write	`0x00`
2	write	`0x44`
3	read	`0x08`
4	write	`0x24`
5	read	`0x2C`
6	write	`0x04`
7	read	`0x40`

How many bytes travel from the cache back out to memory while the trace runs?

0, because write-back defers every store until the program ends