30%
27.08.2014
was the sequential write test using 1MB record sizes:
./iozone -i 0 -c -e -w -r 1024k -s 32g -t 2 -+n > iozone_write_1.out
To gather the block statistics, I ran ioprof in a different terminal window before I ran
30%
30.01.2024
RAM, I built a 44-core compute behemoth for less than $600 to run Monte Carlo [1] simulations. Let me dive into the details!
Bill of Materials
Table 1 details my hardware configuration. I found
30%
02.08.2021
,048
0.776039
22.137891
1.612694
10.652902
0.199173
86.256026
0.455025
37.755903
4,096
5.855209
23.472936
12.275261
11
30%
11.10.2016
log. The storage is clearly divided: The kernel has tagged 0x0000000100000000
to 0x00000004ffffffff
(4-20GiB) as persistent (type 12)
. The /dev/pmem0
device shows up after loading the driver. Now
30%
22.09.2016
log. The storage is clearly divided: The kernel has tagged 0x0000000100000000
to 0x00000004ffffffff
(4-20GiB) as persistent (type 12)
. The /dev/pmem0
device shows up after loading the driver. Now
30%
25.02.2013
.00 0.00
01/31/2013 09:56:03 AM
avg-cpu: %user %nice %system %iowait %steal %idle
6.00 0.00 2.00 0.50 0.00 91.50
Device: rrqm/s wrqm/s r/s w/s rMB
29%
21.01.2020
8 2 488383488 sda2
12 8 16 6836191232 sdb
13 8 64 6836191232 sde
14 8 80 39078144 sdf
15 8 48 6836191232 sdd
16 8 32 6836191232 sdc
17 11 0 1048575 sr0
29%
25.03.2020
0 1048575 sr0
With the parted utility, you can create a single partition on each entire HDD:
$ for i in sdb sdc sdd sde; do sudo parted --script /dev/$i mklabel gpt mkpart primary 1MB 100
29%
30.01.2020
]
test: (groupid=0, jobs=1): err= 0: pid=1225: Sat Oct 12 19:20:18 2019
write: IOPS=168k, BW=655MiB/s (687MB/s)(10.0GiB/15634msec); 0 zone resets
[ ... ]
Run status group 0 (all jobs):
WRITE: bw=655Mi
29%
19.11.2019
Jobs: 1 (f=1): [w(1)][100.0%][w=654MiB/s][w=167k IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=1225: Sat Oct 12 19:20:18 2019
write: IOPS=168k, BW=655MiB/s (687MB/s)(10.0GiB/15634msec); 0
