perf: interrupt took too long, lowering kernel.perf_event_max_sample_rate

[yulistic]

[ 7609.194330] perf: interrupt took too long (2850 > 2500), lowering kernel.perf_event_max_sample_rate to 70000
[ 7609.199579] perf: interrupt took too long (3618 > 3562), lowering kernel.perf_event_max_sample_rate to 55250
[ 7609.204945] perf: interrupt took too long (4802 > 4522), lowering kernel.perf_event_max_sample_rate to 41500
[ 7609.211682] perf: interrupt took too long (6376 > 6002), lowering kernel.perf_event_max_sample_rate to 31250
[ 7609.213367] perf: interrupt took too long (8225 > 7970), lowering kernel.perf_event_max_sample_rate to 24250
[ 7609.334272] perf: interrupt took too long (10317 > 10281), lowering kernel.perf_event_max_sample_rate to 19250
[ 7609.381592] perf: interrupt took too long (12928 > 12896), lowering kernel.perf_event_max_sample_rate to 15250
[ 7609.434011] perf: interrupt took too long (16313 > 16160), lowering kernel.perf_event_max_sample_rate to 12250
[ 7609.479148] perf: interrupt took too long (20615 > 20391), lowering kernel.perf_event_max_sample_rate to 9500
[ 7609.554012] perf: interrupt took too long (25928 > 25768), lowering kernel.perf_event_max_sample_rate to 7500
[ 7619.240179] perf_duration_warn: 2 callbacks suppressed
[ 7619.240184] perf: interrupt took too long (51408 > 51053), lowering kernel.perf_event_max_sample_rate to 3750
[ 7660.740881] perf: interrupt took too long (64393 > 64260), lowering kernel.perf_event_max_sample_rate to 3000
[ 7732.736431] nr_sampled: 1975199, nr_throttled: 0, nr_lost: 0

When running liblinear this messages are printed to the dmesg log.