The Hammers lost 3-0 to Arsenal at the Emirates, but McDonald insists that Jarvis was impressive in the fixture.
The winger appeared to have the better of Arsenal defender Calum Chambers throughout the match and it was a indication of how much of a danger he can be when at the top of his game.
“He’s run his socks off for the team," he said. "He created a few chances and we need to see more of that.”
Jarvis is playing for his future at the Hammers after seemingly falling out of contention this season and the former Wolverhampton Wanderers man will have been pleased to have impressed.
The 28-year-old was starting his first game since November at the Emirates Stadium and, as a result, his impressive display will have boosted his confidence.
Jarvis will now need to keep putting in this sort of performance for the remainder of the campaign if he is to guarantee that he will be at the Boleyn Ground next season.
The rapid winger is widely expected to move on in the summer and unless he can change opinions fairly drastically his days at West Ham seem numbered.