mirror of
https://github.com/stefanocasazza/ULib.git
synced 2025-09-28 19:05:55 +08:00
114 lines
6.0 KiB
Bash
Executable File
114 lines
6.0 KiB
Bash
Executable File
#!/bin/sh
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. ../.function
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DOC_ROOT=benchmark/FrameworkBenchmarks/ULib/www
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rm -f /tmp/*.memusage.* \
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err/FrameworkBenchmarks.err \
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benchmark/FrameworkBenchmarks/benchmark.log* \
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out/userver_*.out err/userver_*.err \
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trace.*userver_*.[0-9]* object.*userver_*.[0-9]* stack.*userver_*.[0-9]* mempool.*userver_*.[0-9]* \
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$DOC_ROOT/trace.*userver_*.[0-9]* $DOC_ROOT/object.*userver_*.[0-9]* $DOC_ROOT/stack.*userver_*.[0-9]* $DOC_ROOT/mempool.*userver_*.[0-9]*
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#UTRACE="0 100M 0"
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#UOBJDUMP="0 10M 100"
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#USIMERR="error.sim"
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#VALGRIND="valgrind -v --trace-children=yes"
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UMEMUSAGE=yes
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export UTRACE UOBJDUMP USIMERR VALGRIND UMEMUSAGE
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unset ORM_DRIVER ORM_OPTION
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#ORM_DRIVER="sqlite"
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#ORM_OPTION="host=10.30.1.131 dbname=../db/hello_world"
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#ORM_DRIVER="mysql"
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#ORM_OPTION="host=10.30.1.131 user=benchmarkdbuser password=benchmarkdbpass character-set=utf8 dbname=hello_world"
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#ORM_DRIVER="pgsql"
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#ORM_OPTION="host=localhost user=benchmarkdbuser password=benchmarkdbpass dbname=hello_world"
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UMEMPOOL="152,85,0,37,8330,105,-17,-22,40"
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export ORM_DRIVER ORM_OPTION UMEMPOOL
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DIR_CMD="../../examples/userver"
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prepare_usp
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mkdir -p $DOC_ROOT
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# ln -sf ../../../docroot/ws; \
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# ln -sf ../../../docroot/servlet; \
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# ln -sf ../../../docroot/100.html; \
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# ln -sf ../../../docroot/1000.html; \
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if [ "$TERM" != "cygwin" ]; then
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( cd $DOC_ROOT; rm -f *; \
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ln -sf ../../../../../../src/ulib/net/server/plugin/usp/.libs/json.so; \
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ln -sf ../../../../../../src/ulib/net/server/plugin/usp/.libs/plaintext.so; \
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ln -sf ../../../../../../src/ulib/net/server/plugin/usp/.libs/db.so; \
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ln -sf ../../../../../../src/ulib/net/server/plugin/usp/.libs/update.so; \
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ln -sf ../../../../../../src/ulib/net/server/plugin/usp/.libs/query.so; \
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ln -sf ../../../../../../src/ulib/net/server/plugin/usp/.libs/fortune.so )
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fi
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#ulimit -n 100000
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#echo 0 > /proc/sys/net/ipv4/tcp_syncookies
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# ----------------------------------------------------------------------------------------------------------------------------------------------------------
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# cat /proc/sys/net/ipv4/tcp_mem
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# ------------------------------
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# 47556 63410 95112
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# -------------------------------------------
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# low threshold => 47556 * 4096 = 185M
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# memory pressure => 63410 * 4096 = 247M
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# Out of socket memory => 95112 * 4096 = 371M
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# -------------------------------------------
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# cat /proc/net/sockstat
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# cat /proc/sys/net/ipv4/tcp_max_orphans => 131072
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# ----------------------------------------------------------------------------------------------------------------------------------------------------------
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# So in this case we have 21564 orphans. That doesn't seem very close to 65536... Yet, if you look once more at the code above that prints the warning,
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# you'll see that there is this shift variable that has a value between 0 and 2, and that the check is testing if
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# (orphans << shift > sysctl_tcp_max_orphans). What this means is that in certain cases, the kernel decides to penalize some sockets more, and it does
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# so by multiplying the number of orphans by 2x or 4x to artificially increase the "score" of the "bad socket" to penalize. The problem is that due to
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# the way this is implemented, you can see a worrisome "Out of socket memory" error when in fact you're still 4x below the limit and you just had a
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# couple "bad sockets" (which happens frequently when you have an Internet facing service). So unfortunately that means that you need to tune up the
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# maximum number of orphan sockets even if you're 2x or 4x away from the threshold. What value is reasonable for you depends on your situation at hand.
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# Observe how the count of orphans in /proc/net/sockstat is changing when your server is at peak traffic, multiply that value by 4, round it up a bit
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# to have a nice value, and set it. You can set it by doing a echo of the new value in /proc/sys/net/ipv4/tcp_max_orphans, and don't forget to update
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# the value of net.ipv4.tcp_max_orphans in /etc/sysctl.conf so that your change persists across reboots.
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# ----------------------------------------------------------------------------------------------------------------------------------------------------------
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# A server that uses SYN cookies doesn't have to drop connections when its SYN queue fills up.
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# Instead it sends back a SYN+ACK, exactly as if the SYN queue had been larger.
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# (Exceptions: the server must reject TCP options such as large windows, and it must use one of the
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# eight MSS values that it can encode.) When the server receives an ACK, it checks that the secret
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# function works for a recent value of t, and then rebuilds the SYN queue entry from the encoded MSS.
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# ----------------------------------------------------------------------------------------------------------------------------------------------------------
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#echo 1024 > /proc/sys/net/core/somaxconn
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#echo 1 > /proc/sys/net/ipv4/tcp_syncookies
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#echo 524288 > /proc/sys/net/ipv4/tcp_max_orphans
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#echo 2 > /proc/sys/net/ipv4/tcp_synack_retries # 5 -> 2 == 21 sec (Total time to keep half-open connections in the backlog queue)
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#echo 0 > /proc/sys/kernel/printk_ratelimit # 5
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#echo 0 > /proc/sys/kernel/printk_ratelimit_burst # 10
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# --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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#STRACE=$TRUSS
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#VALGRIND="valgrind --tool=exp-dhat"
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#MUDFLAP_OPTIONS="-ignore-reads -backtrace=8"
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echo 16384 > /proc/sys/net/core/somaxconn
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start_prg_background userver_tcp -c benchmark/FrameworkBenchmarks/fbenchmark.cfg
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#run command on another computer
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#ab -n 100000 -c10 http://stefano/servlet/benchmarking?name=stefano
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#ab -n 100000 -c10 https://stefano/servlet/benchmarking?name=stefano
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#$SLEEP
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#killall userver_tcp userver_ssl
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mv err/userver_tcp.err err/FrameworkBenchmarks.err
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#mv err/userver_ssl.err err/benchmarking.err
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echo "PID = `cat benchmark/FrameworkBenchmarks/ULib/userver_tcp.pid`"
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# grep -v 'EAGAIN\|EPIPE\|ENOTCONN\|ECONNRESET' err/benchmarking.err
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# gprof -b ../../examples/userver/userver_tcp gmon.out >profile.out 2>/dev/null
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