i was just rolling bjj 3 days a week but i found this workout on some website awhile back and i have been doing this workout for about 6 weeks now and it has greatly improved my cardio.
Running: 3 / 5 / 4 / 5 / 2 miles, Mo/Tu/We/Fr/Sa
Pushups: 6 sets of 30 pushups, Mon/Wed/Fri
Situps: 6 sets of 35 situps, Mon/Wed/Fri
Pullups: 3 sets of 10 pullups, Mon/Wed/Fri
Dips: 3 sets of 20 dips, Mon/Wed/Fri
Swimming: Swim continuously for 35 min. 4-5 days/week