PMCPL_CT_GROWSIZE
max(pmcstat_npmcs - samples->npmcs, PMCPL_CT_GROWSIZE);
nmaxsize = *maxsize + max(cursize + 1 - *maxsize, PMCPL_CT_GROWSIZE);
nmaxsize = *maxsize + max(cursize + 1 - *maxsize, PMCPL_CT_GROWSIZE);