Matt Ranney mranney
mranney
/ gist:6006259
Created
July 16, 2013 06:27
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| > var b = []; for (var i = 0; i < 1024 * 1024 ; i++) { b.push(new Buffer(1024)); } | |
| 1048576 | |
| > process.memoryUsage() | |
| { rss: 141910016, | |
| heapTotal: 104296088, | |
| heapUsed: 101654176 } | |
| > var b = []; for (var i = 0; i < 1024 * 1024 ; i++) { b.push(new Buffer(2048)); } | |
| 1048576 | |
| > process.memoryUsage() | |
| { rss: 778919936, |
mranney
/ gist:5551257
Created
May 9, 2013 23:04
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| > ::fpregs | |
| _fp_hw 0x03 (80387 chip with SSE) | |
| cw 0x0c7f (IM|DM|ZM|OM|UM|PM|RC|RTZ|P) | |
| sw 0x0c77 (TOP=0t1) (IE|DE|ZE|UE|PE|SF|C2) | |
| xcp sw 0x0000 (0) | |
| ipoff port_poll+0x49 | |
| cssel 0x0 | |
| dtoff 0x8047bd8 | |
| dtsel 0x0 |
mranney
/ gist:5551220
Created
May 9, 2013 22:55
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| > *0x87ebddc | |
| libm.so.2`floor: subl $0x8,%esp | |
| libm.so.2`floor+3: fwait | |
| libm.so.2`floor+4: fnstcw (%esp) | |
| libm.so.2`floor+7: fldl 0xc(%esp) | |
| libm.so.2`floor+0xb: movw (%esp),%cx | |
| libm.so.2`floor+0xf: orw $0xc00,%cx | |
| libm.so.2`floor+0x14: xorw $0x800,%cx | |
| libm.so.2`floor+0x19: movw %cx,0x4(%esp) | |
| libm.so.2`floor+0x1e: fldcw 0x4(%esp) |
mranney
/ gist:5551201
Created
May 9, 2013 22:51
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| > libm.so.2`floor::dis | |
| libm.so.2`floor: subl $0x8,%esp | |
| libm.so.2`floor+3: fwait | |
| libm.so.2`floor+4: fnstcw (%esp) | |
| libm.so.2`floor+7: fldl 0xc(%esp) | |
| libm.so.2`floor+0xb: movw (%esp),%cx | |
| libm.so.2`floor+0xf: orw $0xc00,%cx | |
| libm.so.2`floor+0x14: xorw $0x800,%cx | |
| libm.so.2`floor+0x19: movw %cx,0x4(%esp) | |
| libm.so.2`floor+0x1e: fldcw 0x4(%esp) |
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| mjr@prod-2119:~ [zookeeper]$ gdb /opt/local/bin/node ./core.82428 | |
| GNU gdb (GDB) 7.3.1 | |
| Copyright (C) 2011 Free Software Foundation, Inc. | |
| License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> | |
| This is free software: you are free to change and redistribute it. | |
| There is NO WARRANTY, to the extent permitted by law. Type "show copying" | |
| and "show warranty" for details. | |
| This GDB was configured as "x86_64-sun-solaris2". | |
| For bug reporting instructions, please see: | |
| <http://www.gnu.org/software/gdb/bugs/>... |
mranney
/ gist:5551188
Created
May 9, 2013 22:49
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| > _ZN2v88internal23Runtime_DateCurrentTimeENS0_9ArgumentsEPNS0_7IsolateE-0x3219db::dis | |
| PLT:sin: *ERROR--unknown op code** | |
| PLT:pow: jmp *0x87ebdd8 | |
| PLT:pow: pushl $0x7d0 | |
| PLT:pow: jmp -0xfc0 <0x81de188> | |
| PLT=libm.so.2`floor: jmp *0x87ebddc | |
| PLT=libm.so.2`floor: pushl $0x7d8 | |
| PLT=libm.so.2`floor: jmp -0xfd0 <0x81de188> | |
| PLT:fmod: jmp *0x87ebde0 | |
| PLT:fmod: pushl $0x7e0 |
mranney
/ gist:5549123
Created
May 9, 2013 17:38
Date.now() gets stuck after a while and then only updates slowly.
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| djg@prod-2122:~$ sudo rc /tmp/repl/prod-metricsserver4.sock | |
| prod-metricsserver4> Date.now() | |
| 1368115118080 | |
| prod-metricsserver4> Date.now() | |
| 1368115118080 | |
| prod-metricsserver4> Date.now() | |
| 1368115118080 | |
| .... much time passes ... |
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| make[1]: Entering directory `/voxer/deploy/node/out' | |
| cc '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DL_ENDIAN' '-DOPENSSL_THREADS' '-DPURIFY' '-D_REENTRANT' '-DOPENSSL_NO_DTLS1' '-DOPENSSL_NO_SOCK' '-DOPENSSL_NO_DGRAM' '-DOPENSSL_NO_GOST' '-DOPENSSL_NO_HW_PADLOCK' '-DOPENSSL_NO_TTY' '-DAES_ASM' '-DBF_ASM' '-DBNCO_ASM' '-DBN_ASM' '-DCPUID_ASM' '-DDES_ASM' '-DLIB_BN_ASM' '-DOPENSSL_BN_ASM' '-DOPENSSL_CPUID_OBJ' '-DRIP_ASM' '-DWHIRLPOOL_ASM' '-DWP_ASM' '-DENGINESDIR="/dev/null"' '-DOPENSSLDIR="/etc/ssl"' '-DTERMIOS' '-D__EXTENSIONS__' -I../deps/openssl -I../deps/openssl/openssl -I../deps/openssl/openssl/crypto -I../deps/openssl/openssl/crypto/asn1 -I../deps/openssl/openssl/crypto/evp -I../deps/openssl/openssl/crypto/store -I../deps/openssl/openssl/include -I../deps/openssl/config/k8 -Wall -m64 -pthreads -O2 -fno-strict-aliasing -ffunction-sections -fdata-sections -fno-tree-vrp -fno-omit-frame-pointer -MMD -MF /voxer/deploy/node/out/Release/.deps//voxer/deploy/node/out/Release/obj.target/openssl/deps/ope |
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| 141f4d0: proto=tcpv4 src=208.54.35.249:43275 fe=front_prod-nr1278 be=back_prod-nr1278 srv=prod-nr1278 ts=08 age=17h9m calls=13 q[f=2804020h,i=0,an=2000h,rx=,wx=,ax=] rp[f=000020h,i=0,an=100000h,rx=,wx=,ax=] s0=[7,8h,fd=170,ex=] s1=[9,188h,fd=492,ex=] exp= | |
| dcb2d0: proto=tcpv4 src=166.250.33.151:8671 fe=front_prod-nr1278 be=back_prod-nr1278 srv=prod-nr1278 ts=08 age=17h9m calls=8 q[f=804020h,i=238,an=2000h,rx=,wx=,ax=] rp[f=000020h,i=0,an=100000h,rx=,wx=,ax=] s0=[7,8h,fd=459,ex=] s1=[9,188h,fd=492,ex=] exp= |
mranney
/ core size.txt
Created
August 30, 2012 19:56
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| root@prod-2180:/voxer/core# mdb core.node.15363 | |
| Loading modules: [ libumem.so.1 libc.so.1 ld.so.1 ] | |
| > ::status | |
| debugging core file of node (32-bit) from prod-2180.local | |
| file: /opt/local/bin/node | |
| initial argv: node /voxer/server/router_node.js --name prod-nr1337.voxer.com --rediscache 192 | |
| threading model: native threads | |
| status: process terminated by SIGABRT (Abort), pid=15363 uid=0 code=-1 | |
| root@prod-2180:/voxer/core# ls -lh core.node.29756 | |
| -rw------- 1 root root 432M Aug 30 18:28 core.node.29756 |