Change Details

Peter Holm has reported that a 5-hour test of this patch revealed no problems. I defined a sysctl to create reservations with every 17th page allocated, and then to check for the availability of 16 pages on a 16 page boundary. Ten samples without this change: cycles/break: 2769630 cycles/break: 2586584 cycles/break: 2585703 cycles/break: 2587762 cycles/break: 2585641 cycles/break: 2587068 cycles/break: 2586093 cycles/break: 2585840 cycles/break: 2587580 cycles/break: 2586152 Ten samples after this change: cycles/break: 86162 cycles/break: 86456 cycles/break: 85970 cycles/break: 86123 cycles/break: 85898 cycles/break: 86041 cycles/break: 85975 cycles/break: 86733 cycles/break: 85905 cycles/break: 86131 The patch that implements the sysctl is here.{F4661598}

Peter Holm has reported that a 5-hour test of this patch revealed no problems. I defined a sysctl to create reservations with every 17th page allocated, and then to check for the availability of 16 pages on a 16 page boundary. Ten samples without this change: cycles/break: 2769630 cycles/break: 2586584 cycles/break: 2585703 cycles/break: 2587762 cycles/break: 2585641 cycles/break: 2587068 cycles/break: 2586093 cycles/break: 2585840 cycles/break: 2587580 cycles/break: 2586152 Ten samples after this change: cycles/break: 88031 cycles/break: 88288 cycles/break: 88507 cycles/break: 88295 cycles/break: 88107 cycles/break: 88079 cycles/break: 88303 cycles/break: 88384 cycles/break: 88356 The patch that implements the sysctl is here.{F4661598}

Peter Holm has reported that a 5-hour test of this patch revealed no problems. I defined a sysctl to create reservations with every 17th page allocated, and then to check for the availability of 16 pages on a 16 page boundary. Ten samples without this change: cycles/break: 2769630 cycles/break: 2586584 cycles/break: 2585703 cycles/break: 2587762 cycles/break: 2585641 cycles/break: 2587068 cycles/break: 2586093 cycles/break: 2585840 cycles/break: 2587580 cycles/break: 2586152 Ten samples after this change: cycles/break: 861628031 cycles/break: 864568288 cycles/break: 859708507 cycles/break: 861238295 cycles/break: 858988107 cycles/break: 860418079 cycles/break: 859758303 cycles/break: 867338384 cycles/break: 85905 cycles/break: 861318356 The patch that implements the sysctl is here.{F4661598}