def get_required_mem_for_capture_kernel(self):
"""Detects the system configuration and returns the amount of memory
required for capture kernel in MB"""
ram = get_total_ram()
if ram is None:
return None
else:
# Change from KB to MB
ram = ram / 1024
for (total_mem, need_reservation_mem) in self.capture_kernel_mem:
if ram <= total_mem:
return need_reservation_mem
def get_crash_mem_needed(self):
"""Returns the memory needs to be reserved for crash dump in MB"""
ram = get_total_ram()
if ram is None:
self.log.debug("Failed to detect total ram")
return None
# change from KB to MB
ram = ram / 1024 / 1024
for (sys_mem, mem_reservation_needed) in self.capture_kernel_mem:
if ram <= sys_mem:
return mem_reservation_needed
def get_required_mem_for_capture_kernel(self):
"""detects the system configuration and returns the amount of memory
required for capture kernel in MB"""
crash_ker_val = get_crashkernel_recomm()
if crash_ker_val != -1:
return crash_ker_val
ram = get_total_ram()
if ram is None:
return None
# change from kb to mb
ram = ram / 1024
for (total_mem, need_reservation_mem) in self.capture_kernel_mem:
if ram <= total_mem:
return need_reservation_mem
def get_required_mem_for_capture_kernel(self):
"""Detects the system configuration and returns the amount of memory
required for capture kernel in MB"""
ram = get_total_ram()
if ram is None:
return None
else:
# Change from KB to MB
ram = ram / 1024
capture_kernel_mem = [(2048, 128), (4096, 320), (32768, 512),
(65536, 1024), (131072, 2048), (1048576, 8192),
(8388608, 16384), (16777216, 32768),
(sys.maxsize, 65536)]
for (total_mem, need_reservation_mem) in capture_kernel_mem:
if ram <= total_mem:
return need_reservation_mem
def get_crash_mem_needed(self):
"""Returns the memory needs to be reserved for crash dump in MB"""
ram = get_total_ram()
if ram is None:
self.log.debug("Failed to detect total ram")
return None
# change from KB to MB
ram = ram / 1024 / 1024
# (system mem, mem reservation needed)
# (GB, MB)
crashkernel_mem_table = [(4, 0), (64, 1024), (128, 2048), (1024, 4096),
(2048, 6144), (4096, 12288), (8192, 20480),
(16384, 36864), (32786, 65536),
(65536, 131072), (sys.maxsize, 184320)]
for (sys_mem, mem_reservation_needed) in crashkernel_mem_table:
if ram <= sys_mem:
return mem_reservation_needed