Hallo Community!
Ich bin gerade dabei, mir einen Server auf Basis von Proxmox aufzubauen. Die Aufgaben beschränken sich größtenteils auf div. LABs
Hardware:
MB: Asus x99 WS usb/31
CPU: Xeon E5 2630 v4
Net: Intel X550 T2
Ram: 98GB ECC Kingston
Disk 6x SSD Samsung SM863a (240GB)
SATA Controller Intel onboard AHCI Mode
NVME: Boot Disk: Optane 16GB
Aktuell Pool Config:
zpool create -f -o ashift=12 rpool raidz1 /dev/disk/by-id/Disk1 ... raidz1 /dev/disk/by-id/Disk3 ...
Disk Settings:
/etc/hdparm.conf
/dev/sda {
write_cache = off
}
/dev/sdb {
write_cache = off
}
/dev/sdc {
write_cache = off
}
/dev/sdd {
write_cache = off
}
/dev/sde {
write_cache = off
}
/dev/sdf {
write_cache = off
}
ZFS Settings:
/etc/modprobe.d/zfs.conf
## > options zfs zfs_arc_max=34359738368 (32GB)
zfs set compression=lz4 rpool
zfs set atime=off rpool
zfs set logbias=throughput rpool
zfs set xattr=sa rpool
zfs set sync=standard
Dataset:
zfs create rpool/SSD-vmdata-KVM
zfs create rpool/SSD-vmdata-LXC
zfs set canmount=off rpool/SSD-vmdata-KVM
zfs set canmount=off rpool/SSD-vmdata-LXC
pveperf /rpool hdparm -W 0 /dev/sd[a-f]
CPU BOGOMIPS: 87942.00
REGEX/SECOND: 2674683
HD SIZE: 774.57 GB (rpool)
FSYNCS/SECOND: 6673.97
pveperf /rpool hdparm -W 1 /dev/sd[a-f]
CPU BOGOMIPS: 87942.00
REGEX/SECOND: 2865395
HD SIZE: 774.57 GB (rpool)
FSYNCS/SECOND: 5178.79
Fio Test: hdparm -W 0 /dev/sdb
zvol Test: hdparm -W 0 /dev/sd[a-f]
zvol Test: hdparm -W 1 /dev/sd[a-f]
Hier nun meine zwei Fragen und eine Bitte!
1. Wieso ist die Performance deutlich besser m. disk cache = off und hätte es einen Nachteil, wenn ich es dabei belasse?
2. Wie schätzen die erfahrenen Proxmox User die Performance ein. Also passt die Leistung zum Setup o. erreiche ich nur einen Bruchteil von der möglichen Leistung?
3. habt ihr eventuell noch Vorschläge
Danke für eure Hilfe!
LG Franz
Ich bin gerade dabei, mir einen Server auf Basis von Proxmox aufzubauen. Die Aufgaben beschränken sich größtenteils auf div. LABs
Hardware:
MB: Asus x99 WS usb/31
CPU: Xeon E5 2630 v4
Net: Intel X550 T2
Ram: 98GB ECC Kingston
Disk 6x SSD Samsung SM863a (240GB)
SATA Controller Intel onboard AHCI Mode
NVME: Boot Disk: Optane 16GB
Aktuell Pool Config:
zpool create -f -o ashift=12 rpool raidz1 /dev/disk/by-id/Disk1 ... raidz1 /dev/disk/by-id/Disk3 ...
pool: rpool
state: ONLINE
scan: scrub repaired 0B in 0h2m with 0 errors on Thu Oct 11 11:15:03 2018
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
ata-SAMSUNG_MZ7KM240HMHQ-00005_ ONLINE 0 0 0
ata-SAMSUNG_MZ7KM240HMHQ-00005_ ONLINE 0 0 0
ata-SAMSUNG_MZ7KM240HMHQ-00005_ ONLINE 0 0 0
raidz1-1 ONLINE 0 0 0
ata-SAMSUNG_MZ7KM240HMHQ-00005_ ONLINE 0 0 0
ata-SAMSUNG_MZ7KM240HMHQ-00005_ ONLINE 0 0 0
ata-SAMSUNG_MZ7KM240HMHQ-00005_ ONLINE 0 0 0
state: ONLINE
scan: scrub repaired 0B in 0h2m with 0 errors on Thu Oct 11 11:15:03 2018
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
ata-SAMSUNG_MZ7KM240HMHQ-00005_ ONLINE 0 0 0
ata-SAMSUNG_MZ7KM240HMHQ-00005_ ONLINE 0 0 0
ata-SAMSUNG_MZ7KM240HMHQ-00005_ ONLINE 0 0 0
raidz1-1 ONLINE 0 0 0
ata-SAMSUNG_MZ7KM240HMHQ-00005_ ONLINE 0 0 0
ata-SAMSUNG_MZ7KM240HMHQ-00005_ ONLINE 0 0 0
ata-SAMSUNG_MZ7KM240HMHQ-00005_ ONLINE 0 0 0
Disk Settings:
/etc/hdparm.conf
/dev/sda {
write_cache = off
}
/dev/sdb {
write_cache = off
}
/dev/sdc {
write_cache = off
}
/dev/sdd {
write_cache = off
}
/dev/sde {
write_cache = off
}
/dev/sdf {
write_cache = off
}
ZFS Settings:
/etc/modprobe.d/zfs.conf
## > options zfs zfs_arc_max=34359738368 (32GB)
zfs set compression=lz4 rpool
zfs set atime=off rpool
zfs set logbias=throughput rpool
zfs set xattr=sa rpool
zfs set sync=standard
Dataset:
zfs create rpool/SSD-vmdata-KVM
zfs create rpool/SSD-vmdata-LXC
zfs set canmount=off rpool/SSD-vmdata-KVM
zfs set canmount=off rpool/SSD-vmdata-LXC
pveperf /rpool hdparm -W 0 /dev/sd[a-f]
CPU BOGOMIPS: 87942.00
REGEX/SECOND: 2674683
HD SIZE: 774.57 GB (rpool)
FSYNCS/SECOND: 6673.97
pveperf /rpool hdparm -W 1 /dev/sd[a-f]
CPU BOGOMIPS: 87942.00
REGEX/SECOND: 2865395
HD SIZE: 774.57 GB (rpool)
FSYNCS/SECOND: 5178.79
Fio Test: hdparm -W 0 /dev/sdb
WRITE:
Test Command: fio --filename=/dev/sdb --direct=1 --sync=1 --rw=write --bs=4k --numjobs=1 --iodepth=1 --runtime=60 --time_based --group_reporting --name=journal-test
journal-test: (g=0): rw=write, bs=4K-4K/4K-4K/4K-4K, ioengine=psync, iodepth=1
fio-2.16
Starting 1 process
Jobs: 1 (f=1): [W(1)] [100.0% done] [0KB/146.8MB/0KB /s] [0/37.6K/0 iops] [eta 00m:00s]
journal-test: (groupid=0, jobs=1): err= 0: pid=14492: Wed Oct 10 19:11:26 2018
write: io=8744.6MB, bw=149229KB/s, iops=37307, runt= 60001msec
clat (usec): min=24, max=9145, avg=26.38, stdev=11.21
lat (usec): min=24, max=9145, avg=26.45, stdev=11.22
clat percentiles (usec):
| 1.00th=[ 25], 5.00th=[ 25], 10.00th=[ 25], 20.00th=[ 26],
| 30.00th=[ 26], 40.00th=[ 26], 50.00th=[ 26], 60.00th=[ 26],
| 70.00th=[ 26], 80.00th=[ 26], 90.00th=[ 27], 95.00th=[ 27],
| 99.00th=[ 37], 99.50th=[ 41], 99.90th=[ 61], 99.95th=[ 101],
| 99.99th=[ 106]
lat (usec) : 50=99.82%, 100=0.10%, 250=0.07%, 500=0.01%, 750=0.01%
lat (usec) : 1000=0.01%
lat (msec) : 2=0.01%, 4=0.01%, 10=0.01%
cpu : usr=3.46%, sys=13.25%, ctx=2238490, majf=0, minf=9
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=0/w=2238478/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
WRITE: io=8744.6MB, aggrb=149229KB/s, minb=149229KB/s, maxb=149229KB/s, mint=60001msec, maxt=60001msec
Test Command: fio --filename=/dev/sdb --direct=1 --sync=1 --rw=write --bs=4k --numjobs=1 --iodepth=1 --runtime=60 --time_based --group_reporting --name=journal-test
journal-test: (g=0): rw=write, bs=4K-4K/4K-4K/4K-4K, ioengine=psync, iodepth=1
fio-2.16
Starting 1 process
Jobs: 1 (f=1): [W(1)] [100.0% done] [0KB/146.8MB/0KB /s] [0/37.6K/0 iops] [eta 00m:00s]
journal-test: (groupid=0, jobs=1): err= 0: pid=14492: Wed Oct 10 19:11:26 2018
write: io=8744.6MB, bw=149229KB/s, iops=37307, runt= 60001msec
clat (usec): min=24, max=9145, avg=26.38, stdev=11.21
lat (usec): min=24, max=9145, avg=26.45, stdev=11.22
clat percentiles (usec):
| 1.00th=[ 25], 5.00th=[ 25], 10.00th=[ 25], 20.00th=[ 26],
| 30.00th=[ 26], 40.00th=[ 26], 50.00th=[ 26], 60.00th=[ 26],
| 70.00th=[ 26], 80.00th=[ 26], 90.00th=[ 27], 95.00th=[ 27],
| 99.00th=[ 37], 99.50th=[ 41], 99.90th=[ 61], 99.95th=[ 101],
| 99.99th=[ 106]
lat (usec) : 50=99.82%, 100=0.10%, 250=0.07%, 500=0.01%, 750=0.01%
lat (usec) : 1000=0.01%
lat (msec) : 2=0.01%, 4=0.01%, 10=0.01%
cpu : usr=3.46%, sys=13.25%, ctx=2238490, majf=0, minf=9
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=0/w=2238478/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
WRITE: io=8744.6MB, aggrb=149229KB/s, minb=149229KB/s, maxb=149229KB/s, mint=60001msec, maxt=60001msec
Fio Test: hdparm -W 1 /dev/sdb
Test Command: fio --filename=/dev/sdb --direct=1 --sync=1 --rw=write --bs=4k --numjobs=1 --iodepth=1 --runtime=60 --time_based --group_reporting --name=journal-test
journal-test: (g=0): rw=write, bs=4K-4K/4K-4K/4K-4K, ioengine=psync, iodepth=1
fio-2.16
Starting 1 process
Jobs: 1 (f=1): [W(1)] [100.0% done] [0KB/59456KB/0KB /s] [0/14.9K/0 iops] [eta 00m:00s]
journal-test: (groupid=0, jobs=1): err= 0: pid=20931: Wed Oct 10 19:14:57 2018
write: io=3448.3MB, bw=58850KB/s, iops=14712, runt= 60001msec
clat (usec): min=62, max=4135, avg=67.52, stdev=15.30
lat (usec): min=62, max=4135, avg=67.60, stdev=15.31
clat percentiles (usec):
| 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 65], 20.00th=[ 65],
| 30.00th=[ 65], 40.00th=[ 66], 50.00th=[ 66], 60.00th=[ 66],
| 70.00th=[ 67], 80.00th=[ 70], 90.00th=[ 73], 95.00th=[ 75],
| 99.00th=[ 84], 99.50th=[ 90], 99.90th=[ 107], 99.95th=[ 117],
| 99.99th=[ 167]
lat (usec) : 100=99.80%, 250=0.19%, 500=0.01%, 750=0.01%, 1000=0.01%
lat (msec) : 2=0.01%, 4=0.01%, 10=0.01%
cpu : usr=0.88%, sys=5.80%, ctx=1765523, majf=0, minf=10
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=0/w=882759/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
WRITE: io=3448.3MB, aggrb=58849KB/s, minb=58849KB/s, maxb=58849KB/s, mint=60001msec, maxt=60001msec
Disk stats (read/write):
sdb: ios=134/1762781, merge=0/0, ticks=88/50208, in_queue=50196, util=83.52%
Test Command: fio --filename=/dev/sdb --direct=1 --sync=1 --rw=write --bs=4k --numjobs=1 --iodepth=1 --runtime=60 --time_based --group_reporting --name=journal-test
journal-test: (g=0): rw=write, bs=4K-4K/4K-4K/4K-4K, ioengine=psync, iodepth=1
fio-2.16
Starting 1 process
Jobs: 1 (f=1): [W(1)] [100.0% done] [0KB/59456KB/0KB /s] [0/14.9K/0 iops] [eta 00m:00s]
journal-test: (groupid=0, jobs=1): err= 0: pid=20931: Wed Oct 10 19:14:57 2018
write: io=3448.3MB, bw=58850KB/s, iops=14712, runt= 60001msec
clat (usec): min=62, max=4135, avg=67.52, stdev=15.30
lat (usec): min=62, max=4135, avg=67.60, stdev=15.31
clat percentiles (usec):
| 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 65], 20.00th=[ 65],
| 30.00th=[ 65], 40.00th=[ 66], 50.00th=[ 66], 60.00th=[ 66],
| 70.00th=[ 67], 80.00th=[ 70], 90.00th=[ 73], 95.00th=[ 75],
| 99.00th=[ 84], 99.50th=[ 90], 99.90th=[ 107], 99.95th=[ 117],
| 99.99th=[ 167]
lat (usec) : 100=99.80%, 250=0.19%, 500=0.01%, 750=0.01%, 1000=0.01%
lat (msec) : 2=0.01%, 4=0.01%, 10=0.01%
cpu : usr=0.88%, sys=5.80%, ctx=1765523, majf=0, minf=10
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=0/w=882759/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
WRITE: io=3448.3MB, aggrb=58849KB/s, minb=58849KB/s, maxb=58849KB/s, mint=60001msec, maxt=60001msec
Disk stats (read/write):
sdb: ios=134/1762781, merge=0/0, ticks=88/50208, in_queue=50196, util=83.52%
zvol Test: hdparm -W 0 /dev/sd[a-f]
fio --filename=/dev/zvol/rpool/test-8k --direct=1 --sync=1 --rw=write --bs=4k --numjobs=4 --iodepth=32 --runtime=60 --time_based --group_reporting --name=journal-test
journal-test: (g=0): rw=write, bs=4K-4K/4K-4K/4K-4K, ioengine=psync, iodepth=32
...
fio-2.16
Starting 4 processes
Jobs: 4 (f=4): [W(4)] [10.0% done] [0KB/60304KB/0KB /s] [0/15.8K/0 iops] [eta 00m:54s]
fio: terminating on signal 2
journal-test: (groupid=0, jobs=4): err= 0: pid=26151: Wed Oct 10 19:52:04 2018
write: io=401092KB, bw=60206KB/s, iops=15051, runt= 6662msec
clat (usec): min=156, max=37649, avg=264.61, stdev=241.67
lat (usec): min=156, max=37650, avg=264.76, stdev=241.67
clat percentiles (usec):
| 1.00th=[ 233], 5.00th=[ 241], 10.00th=[ 245], 20.00th=[ 249],
| 30.00th=[ 255], 40.00th=[ 258], 50.00th=[ 262], 60.00th=[ 266],
| 70.00th=[ 266], 80.00th=[ 274], 90.00th=[ 278], 95.00th=[ 286],
| 99.00th=[ 366], 99.50th=[ 446], 99.90th=[ 474], 99.95th=[ 524],
| 99.99th=[ 956]
lat (usec) : 250=20.86%, 500=79.07%, 750=0.04%, 1000=0.02%
lat (msec) : 2=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
cpu : usr=0.84%, sys=13.96%, ctx=234219, majf=0, minf=36
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=0/w=100273/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=32
Run status group 0 (all jobs):
WRITE: io=401092KB, aggrb=60205KB/s, minb=60205KB/s, maxb=60205KB/s, mint=6662msec, maxt=6662msec
journal-test: (g=0): rw=write, bs=4K-4K/4K-4K/4K-4K, ioengine=psync, iodepth=32
...
fio-2.16
Starting 4 processes
Jobs: 4 (f=4): [W(4)] [10.0% done] [0KB/60304KB/0KB /s] [0/15.8K/0 iops] [eta 00m:54s]
fio: terminating on signal 2
journal-test: (groupid=0, jobs=4): err= 0: pid=26151: Wed Oct 10 19:52:04 2018
write: io=401092KB, bw=60206KB/s, iops=15051, runt= 6662msec
clat (usec): min=156, max=37649, avg=264.61, stdev=241.67
lat (usec): min=156, max=37650, avg=264.76, stdev=241.67
clat percentiles (usec):
| 1.00th=[ 233], 5.00th=[ 241], 10.00th=[ 245], 20.00th=[ 249],
| 30.00th=[ 255], 40.00th=[ 258], 50.00th=[ 262], 60.00th=[ 266],
| 70.00th=[ 266], 80.00th=[ 274], 90.00th=[ 278], 95.00th=[ 286],
| 99.00th=[ 366], 99.50th=[ 446], 99.90th=[ 474], 99.95th=[ 524],
| 99.99th=[ 956]
lat (usec) : 250=20.86%, 500=79.07%, 750=0.04%, 1000=0.02%
lat (msec) : 2=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
cpu : usr=0.84%, sys=13.96%, ctx=234219, majf=0, minf=36
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=0/w=100273/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=32
Run status group 0 (all jobs):
WRITE: io=401092KB, aggrb=60205KB/s, minb=60205KB/s, maxb=60205KB/s, mint=6662msec, maxt=6662msec
zvol Test: hdparm -W 1 /dev/sd[a-f]
Starting 4 processes
Jobs: 4 (f=4): [W(4)] [100.0% done] [0KB/42612KB/0KB /s] [0/10.7K/0 iops] [eta 00m:00s]
journal-test: (groupid=0, jobs=4): err= 0: pid=3201: Wed Oct 10 19:54:09 2018
write: io=2544.9MB, bw=43432KB/s, iops=10857, runt= 60001msec
clat (usec): min=156, max=36846, avg=367.08, stdev=299.37
lat (usec): min=156, max=36846, avg=367.25, stdev=299.37
clat percentiles (usec):
| 1.00th=[ 314], 5.00th=[ 334], 10.00th=[ 338], 20.00th=[ 346],
| 30.00th=[ 350], 40.00th=[ 354], 50.00th=[ 358], 60.00th=[ 362],
| 70.00th=[ 366], 80.00th=[ 374], 90.00th=[ 386], 95.00th=[ 398],
| 99.00th=[ 628], 99.50th=[ 684], 99.90th=[ 748], 99.95th=[ 828],
| 99.99th=[ 9408]
lat (usec) : 250=0.41%, 500=97.99%, 750=1.51%, 1000=0.06%
lat (msec) : 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
cpu : usr=0.57%, sys=10.72%, ctx=1530383, majf=0, minf=34
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=0/w=651485/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
WRITE: io=2544.9MB, aggrb=43431KB/s, minb=43431KB/s, maxb=43431KB/s, mint=60001msec, maxt=60001msec
Jobs: 4 (f=4): [W(4)] [100.0% done] [0KB/42612KB/0KB /s] [0/10.7K/0 iops] [eta 00m:00s]
journal-test: (groupid=0, jobs=4): err= 0: pid=3201: Wed Oct 10 19:54:09 2018
write: io=2544.9MB, bw=43432KB/s, iops=10857, runt= 60001msec
clat (usec): min=156, max=36846, avg=367.08, stdev=299.37
lat (usec): min=156, max=36846, avg=367.25, stdev=299.37
clat percentiles (usec):
| 1.00th=[ 314], 5.00th=[ 334], 10.00th=[ 338], 20.00th=[ 346],
| 30.00th=[ 350], 40.00th=[ 354], 50.00th=[ 358], 60.00th=[ 362],
| 70.00th=[ 366], 80.00th=[ 374], 90.00th=[ 386], 95.00th=[ 398],
| 99.00th=[ 628], 99.50th=[ 684], 99.90th=[ 748], 99.95th=[ 828],
| 99.99th=[ 9408]
lat (usec) : 250=0.41%, 500=97.99%, 750=1.51%, 1000=0.06%
lat (msec) : 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
cpu : usr=0.57%, sys=10.72%, ctx=1530383, majf=0, minf=34
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=0/w=651485/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
WRITE: io=2544.9MB, aggrb=43431KB/s, minb=43431KB/s, maxb=43431KB/s, mint=60001msec, maxt=60001msec
fio --filename=/dev/zvol/rpool/test-8k --direct=1 --sync=1 --rw=read --bs=4k --numjobs=4 --iodepth=32 --runtime=60 --time_based --group_reporting --name=journal-test
journal-test: (g=0): rw=read, bs=4K-4K/4K-4K/4K-4K, ioengine=psync, iodepth=32
...
fio-2.16
Starting 4 processes
Jobs: 4 (f=4): [R(4)] [100.0% done] [472.6MB/0KB/0KB /s] [121K/0/0 iops] [eta 00m:00s]
journal-test: (groupid=0, jobs=4): err= 0: pid=29643: Thu Oct 11 14:16:43 2018
read : io=33842MB, bw=577566KB/s, iops=144391, runt= 60001msec
clat (usec): min=7, max=1985, avg=27.19, stdev= 4.49
lat (usec): min=7, max=1985, avg=27.27, stdev= 4.49
clat percentiles (usec):
| 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 23], 20.00th=[ 25],
| 30.00th=[ 25], 40.00th=[ 26], 50.00th=[ 27], 60.00th=[ 27],
| 70.00th=[ 28], 80.00th=[ 29], 90.00th=[ 31], 95.00th=[ 34],
| 99.00th=[ 41], 99.50th=[ 44], 99.90th=[ 50], 99.95th=[ 52],
| 99.99th=[ 70]
lat (usec) : 10=0.03%, 20=1.60%, 50=98.25%, 100=0.11%, 250=0.01%
lat (usec) : 500=0.01%, 750=0.01%, 1000=0.01%
lat (msec) : 2=0.01%
cpu : usr=4.56%, sys=20.50%, ctx=8663770, majf=0, minf=37
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=8663640/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=32
Run status group 0 (all jobs):
READ: io=33842MB, aggrb=577566KB/s, minb=577566KB/s, maxb=577566KB/s, mint=60001msec, maxt=60001msec
journal-test: (g=0): rw=read, bs=4K-4K/4K-4K/4K-4K, ioengine=psync, iodepth=32
...
fio-2.16
Starting 4 processes
Jobs: 4 (f=4): [R(4)] [100.0% done] [472.6MB/0KB/0KB /s] [121K/0/0 iops] [eta 00m:00s]
journal-test: (groupid=0, jobs=4): err= 0: pid=29643: Thu Oct 11 14:16:43 2018
read : io=33842MB, bw=577566KB/s, iops=144391, runt= 60001msec
clat (usec): min=7, max=1985, avg=27.19, stdev= 4.49
lat (usec): min=7, max=1985, avg=27.27, stdev= 4.49
clat percentiles (usec):
| 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 23], 20.00th=[ 25],
| 30.00th=[ 25], 40.00th=[ 26], 50.00th=[ 27], 60.00th=[ 27],
| 70.00th=[ 28], 80.00th=[ 29], 90.00th=[ 31], 95.00th=[ 34],
| 99.00th=[ 41], 99.50th=[ 44], 99.90th=[ 50], 99.95th=[ 52],
| 99.99th=[ 70]
lat (usec) : 10=0.03%, 20=1.60%, 50=98.25%, 100=0.11%, 250=0.01%
lat (usec) : 500=0.01%, 750=0.01%, 1000=0.01%
lat (msec) : 2=0.01%
cpu : usr=4.56%, sys=20.50%, ctx=8663770, majf=0, minf=37
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=8663640/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=32
Run status group 0 (all jobs):
READ: io=33842MB, aggrb=577566KB/s, minb=577566KB/s, maxb=577566KB/s, mint=60001msec, maxt=60001msec
Hier nun meine zwei Fragen und eine Bitte!
1. Wieso ist die Performance deutlich besser m. disk cache = off und hätte es einen Nachteil, wenn ich es dabei belasse?
2. Wie schätzen die erfahrenen Proxmox User die Performance ein. Also passt die Leistung zum Setup o. erreiche ich nur einen Bruchteil von der möglichen Leistung?
3. habt ihr eventuell noch Vorschläge
Danke für eure Hilfe!
LG Franz
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