def test_swl_only(nvme0: d.Controller, nvme0n1: d.Namespace, verify):
logging.info("format")
nvme0n1.format(512)
io_size = 128
ns_size = nvme0n1.id_data(7, 0)
io_count = ns_size//io_size
logging.info("fill whole drive")
nvme0n1.ioworker(io_size=io_size,
lba_random=False,
io_count=io_count,
read_percentage=0).start().close()
io_per_second = []
logging.info("write hot sequential data")
# 10GB seq write
nvme0n1.ioworker(io_size=8,
lba_random=False,
region_end=10*1024*1024*1024//512, #10GB
read_percentage=0,
time=10*3600,
output_io_per_second=io_per_second).start().close()
logging.info(io_per_second)
logging.info("verify whole drive")
nvme0n1.ioworker(io_size=io_size,
lba_random=False,
io_count=io_count,
read_percentage=100).start().close()
plt.plot(io_per_second)
plt.ylim(bottom=0)
plt.xlim(left=0)
plt.show()
def test_write_and_read_to_eol(nvme0, subsystem, nvme0n1: d.Namespace, verify):
assert verify
# format drive
nvme0n1.format()
lba_count = nvme0n1.id_data(7, 0)
# test for PE cycles
for i in range(TEST_LOOPS):
logging.info(f"loop {i} start")
# write 1 pass of whole drive
io_size = 64*1024//512 # 64KB
write_start = time.time()
nvme0n1.ioworker(io_size, io_size, False, 0, io_count=lba_count//io_size).start().close()
write_duration = time.time()-write_start
logging.info("full drive write %d seconds" % write_duration)
assert write_duration < 1800
# power cycle
subsystem.power_cycle(15)
# read part of drive
read_time = 1800-write_duration
nvme0n1.ioworker(io_size, io_size, False, 100, read_time, region_end=lba_count//100).start().close()
logging.info(f"loop {i} finish")
# power cycle
subsystem.power_cycle(15)
def test_swl_with_gc(nvme0: d.Controller, nvme0n1: d.Namespace, verify):
import matplotlib.pyplot as plt
logging.info("format")
nvme0n1.format(512)
io_size = 128
ns_size = nvme0n1.id_data(7, 0)
io_count = ns_size // io_size
logging.info("fill whole drive")
nvme0n1.ioworker(io_size=io_size,
lba_random=False,
io_count=io_count,
read_percentage=0).start().close()
distribution = [0] * 100
for i in [0, 3, 11, 28, 60, 71, 73, 88, 92, 98]:
distribution[i] = 1000
io_per_second = []
logging.info("write hot random data")
r = nvme0n1.ioworker(io_size=8,
lba_random=True,
distribution=distribution,
read_percentage=0,
time=10 * 3600,
output_io_per_second=io_per_second).start().close()
logging.info(io_per_second)
logging.info(r)
logging.info("verify whole drive")
nvme0n1.ioworker(io_size=io_size,
lba_random=False,
io_count=io_count,
read_percentage=100).start().close()
plt.plot(io_per_second)
plt.ylim(bottom=0)
plt.show()