"they listened to ten different performances"
"the play ran for 100 performances"
"the frequent performances of the symphony testify to its popularity"

"we congratulated him on his performance at the rehearsal"
"an inspired performance of Mozart's C minor concerto"

"they criticised his performance as mayor"
"experience generally improves performance"

"they admired his performance under stress"
"when Roger Maris powered four home runs in one game his performance merits awe"

"the power of its engine determines its operation"
"the plane's operation in high winds"
"they compared the cooking performance of each oven"
"the jet's performance conformed to high standards"