cached memory and free command
Clash Royale CLAN TAG#URR8PPP
I have a 2 cpu server running SLES 11.4 x86-64 and it has 1.5 tb of RAM.
>free -g
total used free shared buffers cached
Mem: 1514 284 1230 268 0 269
Running a number crunching software, which has worked fine in the past, giving us problems lately running slow and crashing, trying to figure out why.
I tried to do a echo 3 > /proc/sys/vm/drop_caches and that did not work. It usually puts cached to zero, did not work this time.
my questions are:
- what would cause
echo 3 > /proc/sys/vm/drop_cachesnot to work? - does the cached value even matter?
- is there another way to accurately find out current state of RAM used/cached/whatever besides the free command?
- given this type of problem and troubleshooting, any recommendation?
memory memcached free
edited Feb 5 at 17:28
Rui F Ribeiro
40.6k1479137
asked Feb 5 at 16:43
ronron
1,0841815
add a comment |
I have a 2 cpu server running SLES 11.4 x86-64 and it has 1.5 tb of RAM.
>free -g
total used free shared buffers cached
Mem: 1514 284 1230 268 0 269
Running a number crunching software, which has worked fine in the past, giving us problems lately running slow and crashing, trying to figure out why.
I tried to do a echo 3 > /proc/sys/vm/drop_caches and that did not work. It usually puts cached to zero, did not work this time.
my questions are:
- what would cause
echo 3 > /proc/sys/vm/drop_cachesnot to work? - does the cached value even matter?
- is there another way to accurately find out current state of RAM used/cached/whatever besides the free command?
- given this type of problem and troubleshooting, any recommendation?
memory memcached free
edited Feb 5 at 17:28
Rui F Ribeiro
40.6k1479137
asked Feb 5 at 16:43
ronron
1,0841815
add a comment |
I have a 2 cpu server running SLES 11.4 x86-64 and it has 1.5 tb of RAM.
>free -g
total used free shared buffers cached
Mem: 1514 284 1230 268 0 269
Running a number crunching software, which has worked fine in the past, giving us problems lately running slow and crashing, trying to figure out why.
I tried to do a echo 3 > /proc/sys/vm/drop_caches and that did not work. It usually puts cached to zero, did not work this time.
my questions are:
- what would cause
echo 3 > /proc/sys/vm/drop_cachesnot to work? - does the cached value even matter?
- is there another way to accurately find out current state of RAM used/cached/whatever besides the free command?
- given this type of problem and troubleshooting, any recommendation?
memory memcached free
edited Feb 5 at 17:28
Rui F Ribeiro
40.6k1479137
asked Feb 5 at 16:43
ronron
1,0841815
I have a 2 cpu server running SLES 11.4 x86-64 and it has 1.5 tb of RAM.
>free -g
total used free shared buffers cached
Mem: 1514 284 1230 268 0 269
Running a number crunching software, which has worked fine in the past, giving us problems lately running slow and crashing, trying to figure out why.
I tried to do a echo 3 > /proc/sys/vm/drop_caches and that did not work. It usually puts cached to zero, did not work this time.
my questions are:
- what would cause
echo 3 > /proc/sys/vm/drop_cachesnot to work? - does the cached value even matter?
- is there another way to accurately find out current state of RAM used/cached/whatever besides the free command?
- given this type of problem and troubleshooting, any recommendation?
memory memcached free
memory memcached free
edited Feb 5 at 17:28
Rui F Ribeiro
40.6k1479137
asked Feb 5 at 16:43
ronron
1,0841815
edited Feb 5 at 17:28
Rui F Ribeiro
40.6k1479137
asked Feb 5 at 16:43
ronron
1,0841815
edited Feb 5 at 17:28
Rui F Ribeiro
40.6k1479137
edited Feb 5 at 17:28
Rui F Ribeiro
40.6k1479137
edited Feb 5 at 17:28
Rui F Ribeiro
40.6k1479137
40.6k1479137
asked Feb 5 at 16:43
ronron
1,0841815
asked Feb 5 at 16:43
ronron
1,0841815
asked Feb 5 at 16:43
ronron
1,0841815
1,0841815
add a comment |
add a comment |
1 Answer
1
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for the crashing part check dmesg, for the slowness try vmstat 2 and keep it running when you execute the crunshing app, it should shed some light on what the bottleneck might be.
answered Feb 5 at 20:19
Zaid AmirehZaid Amireh
11
add a comment |
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1 Answer
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1 Answer
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active
oldest
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for the crashing part check dmesg, for the slowness try vmstat 2 and keep it running when you execute the crunshing app, it should shed some light on what the bottleneck might be.
answered Feb 5 at 20:19
Zaid AmirehZaid Amireh
11
add a comment |
for the crashing part check dmesg, for the slowness try vmstat 2 and keep it running when you execute the crunshing app, it should shed some light on what the bottleneck might be.
answered Feb 5 at 20:19
Zaid AmirehZaid Amireh
11
add a comment |
for the crashing part check dmesg, for the slowness try vmstat 2 and keep it running when you execute the crunshing app, it should shed some light on what the bottleneck might be.
answered Feb 5 at 20:19
Zaid AmirehZaid Amireh
11
for the crashing part check dmesg, for the slowness try vmstat 2 and keep it running when you execute the crunshing app, it should shed some light on what the bottleneck might be.
answered Feb 5 at 20:19
Zaid AmirehZaid Amireh
11
answered Feb 5 at 20:19
Zaid AmirehZaid Amireh
11
answered Feb 5 at 20:19
Zaid AmirehZaid Amireh
11
answered Feb 5 at 20:19
Zaid AmirehZaid Amireh
11
11
add a comment |
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