Sunderland have seen an upturn in their form since the appointment of Allardyce.
There has certainly been an upturn in both the Black Cats performances and results since Allardyce's arrival at the Stadium of Light, having recorded three league wins, and perhaps felt unlucky not to leave the Emirates Stadium with something to show for their efforts as they went down 3-1 to Arsenal.
M'Vila said: “It’s getting better all the time.
“At Crystal Palace it was OK, against Stoke a bit better and then against Arsenal a bit better still.
“I think if we carry on playing like that, then we’ll win more matches.
“The mentality and the confidence among the players is a lot, lot better.
“That might have all come from Sam Allardyce, yes.
“He’s made us a much stronger team mentally."
There has been certainly been a marked improvement. No wins before Allardyce's arrival in the league this season, but he also seems to have them playing with some consistency.
The win over Palace saw a determined defensive effort, though in patches they knocked the ball around nicely and took advantage of the slice of luck that came their way. Their performance then stepped up against Stoke City, and if they were a bit more clinical against Arsenal, that game could have been a different story.
It looked very bleak until Allardyce's arrival in terms of their Premier League status but they are within striking distance of getting themselves out of the drop zone.
Yes, they face a very difficult festive period with games a winnable game against Watford before they face Chelsea, Manchester City and Liverpool prior to the conclusion of the calendar year, but Allardyce has experience of picking up positive results against all of the sides mentioned.
Despite the fact they are in the relegation zone approaching the midway point of the season, Sunderland can look at these games with optimism rather than trepidation.