Nginx disk io problem
0
I run a small video streaming website and i've been noticing some problems with videos on my site.
TOP
top - 15:43:48 up 34 days, 1:22, 1 user, load average: 37.80, 38.08, 38.38
Tasks: 184 total, 1 running, 183 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.5 us, 0.5 sy, 0.0 ni, 6.0 id, 85.1 wa, 0.0 hi, 7.8 si, 0.0 st
KiB Mem : 32730324 total, 1575916 free, 1470200 used, 29684208 buff/cache
KiB Swap: 33313788 total, 33308768 free, 5020 used. 30448240 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3 root 20 0 0 0 0 S 16.9 0.0 5554:20 ksoftirqd/0
2827 www-data 20 0 398696 84756 5548 S 6.0 0.3 213:14.78 nginx
2828 www-data 20 0 324716 10900 5548 S 1.7 0.0 14:46.99 nginx
40 root 20 0 0 0 0 S 0.3 0.0 148:03.47 ksoftirqd/5
198 root 0 -20 0 0 0 S 0.3 0.0 11:16.66 kworker/0:+
1086 root 20 0 44044 3668 2988 R 0.3 0.0 0:00.21 top
2829 www-data 20 0 319180 6660 5396 S 0.3 0.0 1:51.37 nginx
27962 root 20 0 109956 9704 7836 S 0.3 0.0 0:00.53 exim4
1 root 20 0 204648 5072 3644 S 0.0 0.0 1:47.36 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.16 kthreadd
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:+
7 root 20 0 0 0 0 S 0.0 0.0 31:06.23 rcu_sched
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
9 root rt 0 0 0 0 S 0.0 0.0 0:01.11 migration/0
10 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 lru-add-dr+
11 root rt 0 0 0 0 S 0.0 0.0 1:16.83 watchdog/0
12 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/0
IOTOP
Total DISK READ : 59.96 M/s | Total DISK WRITE : 0.00 B/s
Actual DISK READ: 59.96 M/s | Actual DISK WRITE: 8.84 K/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
2902 be/4 www-data 377.17 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2845 be/4 www-data 1508.66 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2864 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2832 be/4 www-data 1005.78 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2888 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2883 be/4 www-data 848.62 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2836 be/4 www-data 1382.94 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2849 be/4 www-data 628.61 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2841 be/4 www-data 660.04 K/s 0.00 B/s 0.00 % 99.58 % nginx: wo~er process
2853 be/4 www-data 880.05 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2831 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2859 be/4 www-data 1382.94 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2835 be/4 www-data 1005.78 K/s 0.00 B/s 0.00 % 99.87 % nginx: wo~er process
2851 be/4 www-data 628.61 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2834 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2839 be/4 www-data 880.05 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2860 be/4 www-data 251.44 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2892 be/4 www-data 628.61 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2843 be/4 www-data 880.05 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2833 be/4 www-data 377.17 K/s 0.00 B/s 0.00 % 99.97 % nginx: wo~er process
2856 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.97 % nginx: wo~er process
When i stop my website and i try to run disk speed this is what i have.
# dd if=/dev/zero of=tempfile bs=10M count=1024 conv=fdatasync,notrunc status=progress
10622074880 bytes (11 GB, 9.9 GiB) copied, 46.0385 s, 231 MB/s
1024+0 records in
1024+0 records out
10737418240 bytes (11 GB, 10 GiB) copied, 92.1228 s, 117 MB/s
So, current i can push up to 120 MB/s and iotop report i do 60 MB/s, why i'm high load IO issue if only i'm using half speed?
How i can tweak or fix this problem? i'm using nginx to serve mp4 videos.
debian hard-disk nginx streaming
asked 7 mins ago
MikeMike
1
New contributor
Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
0
I run a small video streaming website and i've been noticing some problems with videos on my site.
TOP
top - 15:43:48 up 34 days, 1:22, 1 user, load average: 37.80, 38.08, 38.38
Tasks: 184 total, 1 running, 183 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.5 us, 0.5 sy, 0.0 ni, 6.0 id, 85.1 wa, 0.0 hi, 7.8 si, 0.0 st
KiB Mem : 32730324 total, 1575916 free, 1470200 used, 29684208 buff/cache
KiB Swap: 33313788 total, 33308768 free, 5020 used. 30448240 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3 root 20 0 0 0 0 S 16.9 0.0 5554:20 ksoftirqd/0
2827 www-data 20 0 398696 84756 5548 S 6.0 0.3 213:14.78 nginx
2828 www-data 20 0 324716 10900 5548 S 1.7 0.0 14:46.99 nginx
40 root 20 0 0 0 0 S 0.3 0.0 148:03.47 ksoftirqd/5
198 root 0 -20 0 0 0 S 0.3 0.0 11:16.66 kworker/0:+
1086 root 20 0 44044 3668 2988 R 0.3 0.0 0:00.21 top
2829 www-data 20 0 319180 6660 5396 S 0.3 0.0 1:51.37 nginx
27962 root 20 0 109956 9704 7836 S 0.3 0.0 0:00.53 exim4
1 root 20 0 204648 5072 3644 S 0.0 0.0 1:47.36 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.16 kthreadd
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:+
7 root 20 0 0 0 0 S 0.0 0.0 31:06.23 rcu_sched
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
9 root rt 0 0 0 0 S 0.0 0.0 0:01.11 migration/0
10 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 lru-add-dr+
11 root rt 0 0 0 0 S 0.0 0.0 1:16.83 watchdog/0
12 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/0
IOTOP
Total DISK READ : 59.96 M/s | Total DISK WRITE : 0.00 B/s
Actual DISK READ: 59.96 M/s | Actual DISK WRITE: 8.84 K/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
2902 be/4 www-data 377.17 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2845 be/4 www-data 1508.66 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2864 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2832 be/4 www-data 1005.78 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2888 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2883 be/4 www-data 848.62 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2836 be/4 www-data 1382.94 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2849 be/4 www-data 628.61 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2841 be/4 www-data 660.04 K/s 0.00 B/s 0.00 % 99.58 % nginx: wo~er process
2853 be/4 www-data 880.05 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2831 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2859 be/4 www-data 1382.94 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2835 be/4 www-data 1005.78 K/s 0.00 B/s 0.00 % 99.87 % nginx: wo~er process
2851 be/4 www-data 628.61 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2834 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2839 be/4 www-data 880.05 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2860 be/4 www-data 251.44 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2892 be/4 www-data 628.61 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2843 be/4 www-data 880.05 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2833 be/4 www-data 377.17 K/s 0.00 B/s 0.00 % 99.97 % nginx: wo~er process
2856 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.97 % nginx: wo~er process
When i stop my website and i try to run disk speed this is what i have.
# dd if=/dev/zero of=tempfile bs=10M count=1024 conv=fdatasync,notrunc status=progress
10622074880 bytes (11 GB, 9.9 GiB) copied, 46.0385 s, 231 MB/s
1024+0 records in
1024+0 records out
10737418240 bytes (11 GB, 10 GiB) copied, 92.1228 s, 117 MB/s
So, current i can push up to 120 MB/s and iotop report i do 60 MB/s, why i'm high load IO issue if only i'm using half speed?
How i can tweak or fix this problem? i'm using nginx to serve mp4 videos.
debian hard-disk nginx streaming
asked 7 mins ago
MikeMike
1
New contributor
Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
0
0
0
I run a small video streaming website and i've been noticing some problems with videos on my site.
TOP
top - 15:43:48 up 34 days, 1:22, 1 user, load average: 37.80, 38.08, 38.38
Tasks: 184 total, 1 running, 183 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.5 us, 0.5 sy, 0.0 ni, 6.0 id, 85.1 wa, 0.0 hi, 7.8 si, 0.0 st
KiB Mem : 32730324 total, 1575916 free, 1470200 used, 29684208 buff/cache
KiB Swap: 33313788 total, 33308768 free, 5020 used. 30448240 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3 root 20 0 0 0 0 S 16.9 0.0 5554:20 ksoftirqd/0
2827 www-data 20 0 398696 84756 5548 S 6.0 0.3 213:14.78 nginx
2828 www-data 20 0 324716 10900 5548 S 1.7 0.0 14:46.99 nginx
40 root 20 0 0 0 0 S 0.3 0.0 148:03.47 ksoftirqd/5
198 root 0 -20 0 0 0 S 0.3 0.0 11:16.66 kworker/0:+
1086 root 20 0 44044 3668 2988 R 0.3 0.0 0:00.21 top
2829 www-data 20 0 319180 6660 5396 S 0.3 0.0 1:51.37 nginx
27962 root 20 0 109956 9704 7836 S 0.3 0.0 0:00.53 exim4
1 root 20 0 204648 5072 3644 S 0.0 0.0 1:47.36 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.16 kthreadd
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:+
7 root 20 0 0 0 0 S 0.0 0.0 31:06.23 rcu_sched
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
9 root rt 0 0 0 0 S 0.0 0.0 0:01.11 migration/0
10 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 lru-add-dr+
11 root rt 0 0 0 0 S 0.0 0.0 1:16.83 watchdog/0
12 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/0
IOTOP
Total DISK READ : 59.96 M/s | Total DISK WRITE : 0.00 B/s
Actual DISK READ: 59.96 M/s | Actual DISK WRITE: 8.84 K/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
2902 be/4 www-data 377.17 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2845 be/4 www-data 1508.66 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2864 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2832 be/4 www-data 1005.78 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2888 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2883 be/4 www-data 848.62 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2836 be/4 www-data 1382.94 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2849 be/4 www-data 628.61 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2841 be/4 www-data 660.04 K/s 0.00 B/s 0.00 % 99.58 % nginx: wo~er process
2853 be/4 www-data 880.05 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2831 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2859 be/4 www-data 1382.94 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2835 be/4 www-data 1005.78 K/s 0.00 B/s 0.00 % 99.87 % nginx: wo~er process
2851 be/4 www-data 628.61 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2834 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2839 be/4 www-data 880.05 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2860 be/4 www-data 251.44 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2892 be/4 www-data 628.61 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2843 be/4 www-data 880.05 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2833 be/4 www-data 377.17 K/s 0.00 B/s 0.00 % 99.97 % nginx: wo~er process
2856 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.97 % nginx: wo~er process
When i stop my website and i try to run disk speed this is what i have.
# dd if=/dev/zero of=tempfile bs=10M count=1024 conv=fdatasync,notrunc status=progress
10622074880 bytes (11 GB, 9.9 GiB) copied, 46.0385 s, 231 MB/s
1024+0 records in
1024+0 records out
10737418240 bytes (11 GB, 10 GiB) copied, 92.1228 s, 117 MB/s
So, current i can push up to 120 MB/s and iotop report i do 60 MB/s, why i'm high load IO issue if only i'm using half speed?
How i can tweak or fix this problem? i'm using nginx to serve mp4 videos.
debian hard-disk nginx streaming
asked 7 mins ago
MikeMike
1
New contributor
Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I run a small video streaming website and i've been noticing some problems with videos on my site.
TOP
top - 15:43:48 up 34 days, 1:22, 1 user, load average: 37.80, 38.08, 38.38
Tasks: 184 total, 1 running, 183 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.5 us, 0.5 sy, 0.0 ni, 6.0 id, 85.1 wa, 0.0 hi, 7.8 si, 0.0 st
KiB Mem : 32730324 total, 1575916 free, 1470200 used, 29684208 buff/cache
KiB Swap: 33313788 total, 33308768 free, 5020 used. 30448240 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3 root 20 0 0 0 0 S 16.9 0.0 5554:20 ksoftirqd/0
2827 www-data 20 0 398696 84756 5548 S 6.0 0.3 213:14.78 nginx
2828 www-data 20 0 324716 10900 5548 S 1.7 0.0 14:46.99 nginx
40 root 20 0 0 0 0 S 0.3 0.0 148:03.47 ksoftirqd/5
198 root 0 -20 0 0 0 S 0.3 0.0 11:16.66 kworker/0:+
1086 root 20 0 44044 3668 2988 R 0.3 0.0 0:00.21 top
2829 www-data 20 0 319180 6660 5396 S 0.3 0.0 1:51.37 nginx
27962 root 20 0 109956 9704 7836 S 0.3 0.0 0:00.53 exim4
1 root 20 0 204648 5072 3644 S 0.0 0.0 1:47.36 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.16 kthreadd
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:+
7 root 20 0 0 0 0 S 0.0 0.0 31:06.23 rcu_sched
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
9 root rt 0 0 0 0 S 0.0 0.0 0:01.11 migration/0
10 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 lru-add-dr+
11 root rt 0 0 0 0 S 0.0 0.0 1:16.83 watchdog/0
12 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/0
IOTOP
Total DISK READ : 59.96 M/s | Total DISK WRITE : 0.00 B/s
Actual DISK READ: 59.96 M/s | Actual DISK WRITE: 8.84 K/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
2902 be/4 www-data 377.17 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2845 be/4 www-data 1508.66 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2864 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2832 be/4 www-data 1005.78 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2888 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2883 be/4 www-data 848.62 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2836 be/4 www-data 1382.94 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2849 be/4 www-data 628.61 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2841 be/4 www-data 660.04 K/s 0.00 B/s 0.00 % 99.58 % nginx: wo~er process
2853 be/4 www-data 880.05 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2831 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2859 be/4 www-data 1382.94 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2835 be/4 www-data 1005.78 K/s 0.00 B/s 0.00 % 99.87 % nginx: wo~er process
2851 be/4 www-data 628.61 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2834 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2839 be/4 www-data 880.05 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2860 be/4 www-data 251.44 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2892 be/4 www-data 628.61 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2843 be/4 www-data 880.05 K/s 0.00 B/s 0.00 % 99.99 % nginx: wo~er process
2833 be/4 www-data 377.17 K/s 0.00 B/s 0.00 % 99.97 % nginx: wo~er process
2856 be/4 www-data 754.33 K/s 0.00 B/s 0.00 % 99.97 % nginx: wo~er process
When i stop my website and i try to run disk speed this is what i have.
# dd if=/dev/zero of=tempfile bs=10M count=1024 conv=fdatasync,notrunc status=progress
10622074880 bytes (11 GB, 9.9 GiB) copied, 46.0385 s, 231 MB/s
1024+0 records in
1024+0 records out
10737418240 bytes (11 GB, 10 GiB) copied, 92.1228 s, 117 MB/s
So, current i can push up to 120 MB/s and iotop report i do 60 MB/s, why i'm high load IO issue if only i'm using half speed?
How i can tweak or fix this problem? i'm using nginx to serve mp4 videos.
debian hard-disk nginx streaming
debian hard-disk nginx streaming
asked 7 mins ago
MikeMike
1
New contributor
Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 7 mins ago
MikeMike
1
New contributor
Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 7 mins ago
MikeMike
1
New contributor
Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 7 mins ago
MikeMike
1
asked 7 mins ago
MikeMike
1
1
New contributor
Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
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