Note : J'ai toujours des "interrupt took too long" comme avec les noyaux précédents.
Voici des exemples sur 9 serveurs tous mis à jour avec Linux 4.18 avec un uptime compris entre 8,5 et 9 jours :
[28488.236350] perf: interrupt took too long (2520 > 2500), lowering kernel.perf_event_max_sample_rate to 79250
[42012.322952] perf: interrupt took too long (3239 > 3150), lowering kernel.perf_event_max_sample_rate to 61750
[71442.327409] perf: interrupt took too long (4095 > 4048), lowering kernel.perf_event_max_sample_rate to 48750
[195252.479717] perf: interrupt took too long (5156 > 5118), lowering kernel.perf_event_max_sample_rate to 38750
[27323.840219] perf: interrupt took too long (2503 > 2500), lowering kernel.perf_event_max_sample_rate to 79750
[52408.059463] perf: interrupt took too long (3185 > 3128), lowering kernel.perf_event_max_sample_rate to 62750
[97505.461197] perf: interrupt took too long (4055 > 3981), lowering kernel.perf_event_max_sample_rate to 49250
[167776.701831] perf: interrupt took too long (5134 > 5068), lowering kernel.perf_event_max_sample_rate to 38750
[28495.322337] perf: interrupt took too long (2586 > 2500), lowering kernel.perf_event_max_sample_rate to 77250
[48906.759923] perf: interrupt took too long (3246 > 3232), lowering kernel.perf_event_max_sample_rate to 61500
[65281.779986] perf: interrupt took too long (4121 > 4057), lowering kernel.perf_event_max_sample_rate to 48500
[150281.488535] perf: interrupt took too long (5152 > 5151), lowering kernel.perf_event_max_sample_rate to 38750
[59234.091822] perf: interrupt took too long (2516 > 2500), lowering kernel.perf_event_max_sample_rate to 79250
[83866.594514] perf: interrupt took too long (3155 > 3145), lowering kernel.perf_event_max_sample_rate to 63250
[176535.266527] perf: interrupt took too long (3957 > 3943), lowering kernel.perf_event_max_sample_rate to 50500
[12972.757898] perf: interrupt took too long (2502 > 2500), lowering kernel.perf_event_max_sample_rate to 79750
[19024.196855] perf: interrupt took too long (3221 > 3127), lowering kernel.perf_event_max_sample_rate to 62000
[38811.969523] perf: interrupt took too long (4032 > 4026), lowering kernel.perf_event_max_sample_rate to 49500
[33336.950886] perf: interrupt took too long (2503 > 2500), lowering kernel.perf_event_max_sample_rate to 79750
[59563.282595] perf: interrupt took too long (3207 > 3128), lowering kernel.perf_event_max_sample_rate to 62250
[121678.160428] perf: interrupt took too long (4079 > 4008), lowering kernel.perf_event_max_sample_rate to 49000
[11993.509041] perf: interrupt took too long (2502 > 2500), lowering kernel.perf_event_max_sample_rate to 79750
[29354.505907] perf: interrupt took too long (3137 > 3127), lowering kernel.perf_event_max_sample_rate to 63750
[18395.488094] perf: interrupt took too long (2601 > 2500), lowering kernel.perf_event_max_sample_rate to 76750
[67670.405646] perf: interrupt took too long (3274 > 3251), lowering kernel.perf_event_max_sample_rate to 61000
[95478.122109] perf: interrupt took too long (2501 > 2500), lowering kernel.perf_event_max_sample_rate to 79750
[139099.892251] perf: interrupt took too long (3183 > 3126), lowering kernel.perf_event_max_sample_rate to 62750