hi all,
i'm trying to run memcached on the first 48cores; and the request
generator on the remainder 48 cores.
just a note, they are on two different sockets.
i am launching 12 instances of memcached on different ports with 4
threads each on the localhost.
then for scaling the twitter dataset, i could use all 12 instances in
one server file and it works fine.
for warming the server, i had to warm one server at a time, just like
they say here
<https://www.mail-archive.com/cloudsuite@listes.epfl.ch/msg00279.html>.
BUT, when i'm trying to determine the max throughput and use 48 worker
threads, it says connection error
with 47 server threads it says: number of worker threads should be
divisible by number of servers.
in my case, that is true with 48 worker threads..am i missing something?
how many worker threads should i use?
END=48
for ((i=1;i<=END;i++)); do
echo $i
taskset -c 0-47 ./loader -a ../twitter_dataset/twitter_dataset_40x
-s allserver.txt -g 0.8 -T 1 -c 256 -w $i
done
details of allserver.txt
127.0.0.1, 11211
127.0.0.1, 11212
127.0.0.1, 11213
127.0.0.1, 11214
127.0.0.1, 11215
127.0.0.1, 11216
127.0.0.1, 11217
127.0.0.1, 11218
127.0.0.1, 11219
127.0.0.1, 11220
127.0.0.1, 11221
127.0.0.1, 11222
how i launch memcached instances..
for i in 11211 11212 11213 11214 11215 11216 11217 11218 11219 11220
11221 11222
do
taskset -c 48-95 ./memcached -t 4 -m 4096 -n 550 -p $i &
done
best wishes,
rajiv nishtala
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