Table 3. Performance of different algorithms.

	Speed	Memory occupation	Multiple threads	Co-pair detection	Multiple covariance detection	Sequence classification	Sequence and amino acid information
Fastcov	14 s	1%	Yes	Yes	Yes	Yes	Remaining
PSIcov	2 m35s	9%	Yes	Yes	No	No	Lost
CAPS	≫ 40 m	Out of memory	No	Yes	Yes	No	Lost