def __get_core_info():
if core_id_to_package_id:
return
core_id = 0
while True:
try:
pkg_i = file_get_int(sys_package_f % core_id)
except:
break
core_id_to_package_id[core_id] = pkg_i
core_id_to_thread_siblings[core_id] = \
mask.comma_sep_hex_to_int(file_get_strip(sys_thread_sibs_f %
core_id))
core_id_to_core_siblings[core_id] = \
mask.comma_sep_hex_to_int(file_get_strip(sys_core_sibs_f % core_id))
core_id += 1
def __get_core_info():
if core_id_to_package_id:
return
core_id = 0
while True:
try:
pkg_i = file_get_int(sys_package_f % core_id)
except:
break
core_id_to_package_id[core_id] = pkg_i
core_id_to_thread_siblings[core_id] = \
mask.comma_sep_hex_to_int(file_get_strip(sys_thread_sibs_f %
core_id))
core_id_to_core_siblings[core_id] = \
mask.comma_sep_hex_to_int(file_get_strip(sys_core_sibs_f % core_id))
core_id += 1
def get_local_cores(ethname):
"""Return a list of cores which are NUMA-local to the specified NIC"""
try:
cpumask = file_get_strip(sys_ethname_local_cpus_f % ethname)
except:
cpumask = '0' # in case kernel doesn't support local_cpus return no cores
cpumask = mask.comma_sep_hex_to_int(cpumask)
cpulist = mask.to_int_list(cpumask)
return cpulist
def __get_cache_info():
global shared_caches, core_id_to_package_id
if shared_caches:
return
if not core_id_to_package_id:
__get_core_info()
shared_caches = set()
for core_id in core_id_to_package_id.keys():
for index in range(0, 100):
try:
cpumask = file_get_strip(sys_cache_cpu_map_f % (core_id,index))
except:
break
cpumask = mask.comma_sep_hex_to_int(cpumask)
cpulist = mask.to_int_list(cpumask)
if len(cpulist) > 1:
level = file_get_int(sys_cache_level_f % (core_id, index))
cpumask = mask.to_int(cpumask)
c = (level, cpumask)
shared_caches.add(c)
def __get_cache_info():
global shared_caches, core_id_to_package_id
if shared_caches:
return
if not core_id_to_package_id:
__get_core_info()
shared_caches = set()
for core_id in core_id_to_package_id.keys():
for index in range(0, 100):
try:
cpumask = file_get_strip(sys_cache_cpu_map_f %
(core_id, index))
except:
break
cpumask = mask.comma_sep_hex_to_int(cpumask)
cpulist = mask.to_int_list(cpumask)
if len(cpulist) > 1:
level = file_get_int(sys_cache_level_f % (core_id, index))
cpumask = mask.to_int(cpumask)
c = (level, cpumask)
shared_caches.add(c)
