Benoit Lourdelet writes:
> Hello,
>
> I tried multiple kernels with similar results.
>
> I ran the following on 3.8.2
>
> $ cat > test-script.sh << 'EOF'
> #!/bin/bash
> for i in $(seq 1 2000) ; do
> ip link add a$i type veth peer name b$i
> done
> EOF
>
> $ perf record -a test-script.sh
>
Hello,
I tried multiple kernels with similar results.
I ran the following on 3.8.2
$ cat > test-script.sh << 'EOF'
#!/bin/bash
for i in $(seq 1 2000) ; do
ip link add a$i type veth peer name b$i
done
EOF
$ perf record -a test-script.sh
$ perf report
# event : name = cycles, type = 0,
Benoit Lourdelet writes:
> Hello,
>
> The measurement has been done with kernel 3.8.2.
>
> Linux ieng-serv06 3.7.9 #3 SMP Wed Feb 27 02:38:58 PST 2013 x86_64 x86_64
> x86_64 GNU/Linux
Two different kernel versions?
> What information would you like to see on the kernel ?
The question is where
Hello,
The measurement has been done with kernel 3.8.2.
Linux ieng-serv06 3.7.9 #3 SMP Wed Feb 27 02:38:58 PST 2013 x86_64 x86_64
x86_64 GNU/Linux
What information would you like to see on the kernel ?
Regards
Benoit
On 20/03/2013 01:29, "Eric W. Biederman" wrote:
>Serge Hallyn writes:
>
Serge Hallyn writes:
> Hi,
>
> Benoit was kind enough to follow up on some scalability issues with
> larger (but not huge imo) numbers of containers. Running a script
> to simply time the creation of veth pairs on a rather large (iiuc)
> machine, he got the following numbers (time is for creatio
Hi,
Benoit was kind enough to follow up on some scalability issues with
larger (but not huge imo) numbers of containers. Running a script
to simply time the creation of veth pairs on a rather large (iiuc)
machine, he got the following numbers (time is for creation of the
full number, not latest i
Hello Serge,
The time is to create all 5000, not just the last 1000.
Benoit
On 19/03/2013 19:28, "Serge Hallyn" wrote:
>Quoting Benoit Lourdelet (blour...@juniper.net):
>> Hello Serge,
>>
>> I put together a small table, running your script for various values :
>>
>> Time are in seconds,
>>
Quoting Benoit Lourdelet (blour...@juniper.net):
> Hello Serge,
>
> I put together a small table, running your script for various values :
>
> Time are in seconds,
>
> Number of veth, time to create, time to delete:
>
> 500 18 26
>
> 1000 57 70
>
> 2000 193 250
>
> 3000 435 510
>
> 4000 7
Hello Serge,
I put together a small table, running your script for various values :
Time are in seconds,
Number of veth, time to create, time to delete:
500 18 26
1000 57 70
2000 193 250
3000 435 510
4000 752 824
5000 1123 1185
Obviously it is far from being linear.
Regards
Benoit
Quoting Benoit Lourdelet (blour...@juniper.net):
> Hello,
>
>
> Inline after BL>>
>
>
> Quoting Benoit Lourdelet (blour...@juniper.net):
> >Hello Serge,
> >I am running on a 256MB RAM host, with plenty of free memory.
>
> G? :)
>
> >I issue echo t > /proc/sysrq-trigger when containers was
Hello,
Inline after BL>>
Quoting Benoit Lourdelet (blour...@juniper.net):
>Hello Serge,
>I am running on a 256MB RAM host, with plenty of free memory.
G? :)
>I issue echo t > /proc/sysrq-trigger when containers was taking 30s to
>start , it gave the following. Nothing that caught my attent
Quoting Benoit Lourdelet (blour...@juniper.net):
> Hello Serge,
>
>
> I am running on a 256MB RAM host, with plenty of free memory.
G? :)
> I issue echo t > /proc/sysrq-trigger when containers was taking 30s to
> start , it gave the following. Nothing that caught my attention.
Hm. Thanks.
Hello Serge,
I am running on a 256MB RAM host, with plenty of free memory.
I issue echo t > /proc/sysrq-trigger when containers was taking 30s to start
, it gave the following. Nothing that caught my attention.
this block is repeated of each running container:
[46825.718046] rt_rq[31]:/lxc/l
Quoting Benoit Lourdelet (blour...@juniper.net):
> Hello,
>
> I am running LXC 0.8.0 kernel 3.7.9 and try to start more than 1000 small
> containers : around 10MB of RAM per containers.
>
> Starting around the first 1600 happens smoothy - I have a 32 virtual core
> machine - but then everything
14 matches
Mail list logo
