Dne St 15. srpna 2012 11:05:27 Petr Tesarik napsal(a): > Hi folks, > > while looking at my /proc/zoneinfo, I noticed that the counters are a bit > strange: > > Node 0, zone DMA > pages free 3945 > min 7 > low 8 > high 10 > scanned 0 > spanned 4080 > present 3905 > nr_free_pages 3945 > > OK, you'll probably argue that the rest is hidden in PCP differentials... > BUT: > > 1. this machine has only 2 CPUs > 2. stat_threshold = 4 > 3. vm_stat_diff[NR_FREE_PAGES] = 0 on both CPUs > > Is this only me? Or do I misrepresent what these number actually tell? I verified the free lists, and this part seems sane, so the "present" count must be wrong. FYI I can see this on various x86_64 kernels between 2.6.32 and 3.5.0. Petr Tesarik -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>