disk-linode-check

KVM testing on Ubuntu 16.04 via the Phoronix Test Suite.

Compare your own system(s) to this result file with the Phoronix Test Suite by running the command: phoronix-test-suite benchmark 1707089-TR-1608252HA26
Jump To Table - Results

View

Do Not Show Noisy Results
Do Not Show Results With Incomplete Data
Do Not Show Results With Little Change/Spread
List Notable Results

Limit displaying results to tests within:

CPU Massive 2 Tests
Disk Test Suite 5 Tests
Common Kernel Benchmarks 2 Tests
Server 2 Tests

Statistics

Show Overall Harmonic Mean(s)
Show Overall Geometric Mean
Show Geometric Means Per-Suite/Category
Show Wins / Losses Counts (Pie Chart)
Normalize Results
Remove Outliers Before Calculating Averages

Graph Settings

Force Line Graphs Where Applicable
Convert To Scalar Where Applicable
Prefer Vertical Bar Graphs

Additional Graphs

Show Perf Per Clock Calculation Graphs Where Applicable

Multi-Way Comparison

Condense Multi-Option Tests Into Single Result Graphs

Table

Show Detailed System Result Table

Run Management

Highlight
Result
Hide
Result
Result
Identifier
View Logs
Performance Per
Dollar
Date
Run
  Test
  Duration
disk-linode
May 07 2015
 
disk-provider
May 12 2016
 
s1-2
August 25 2016
 
hyperscale
July 08 2017
 
Hyperscal Cache
July 08 2017
 
Invert Hiding All Results Option
 

Only show results where is faster than
Only show results matching title/arguments (delimit multiple options with a comma):
Do not show results matching title/arguments (delimit multiple options with a comma):


disk-linode-checkProcessorMemoryDiskMotherboardChipsetGraphicsNetworkOSKernelCompilerFile-SystemSystem LayerScreen ResolutionOpenGLdisk-linodedisk-providers1-2hyperscaleHyperscal CacheIntel Xeon E5-2680 v2 @ 2.80GHz (1 Core)1024MB24GBCentOS 6.63.18.5-x86_64-linode52 (x86_64)GCC 4.4.7 20120313ext4Xen 4.4.2-rc1 HypervisorIntel Xeon E312xx @ 2.30GHz (1 Core)OpenStack Foundation Nova v2015.1.21 x 2048 MB RAM QEMU20GBCentOS Linux 73.10.0-229.14.1.el7.x86_64 (x86_64)GCC 4.8.5 20150623xfs1024x768KVM2 x Intel Core (Haswell no TSX) @ 2.30GHz (2 Cores)OpenStack Foundation Nova v12.0.360GB3.10.0-327.18.2.el7.x86_64 (x86_64)Intel Core @ 2.39GHz (1 Core)OpenStack Foundation Nova v15.0.2Intel 440FX- 82441FX PMC2048MB20GBLLVMpipeRed Hat Virtio deviceUbuntu 16.044.4.0-81-generic (x86_64)3.0 Mesa 12.0.6 Gallium 0.4 (LLVM 3.8 256 bits)GCC 5.4.0 20160609ext4OpenBenchmarking.orgCompiler Details- disk-linode: --build=x86_64-redhat-linux --disable-dssi --disable-libjava-multilib --disable-libunwind-exceptions --enable-__cxa_atexit --enable-bootstrap --enable-checking=release --enable-gnu-unique-object --enable-java-awt=gtk --enable-java-maintainer-mode --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-libgcj-multifile --enable-shared --enable-threads=posix --mandir=/usr/share/man --with-arch_32=i686 --with-cloog --with-ppl --with-tune=generic - disk-provider: --build=x86_64-redhat-linux --disable-libgcj --disable-libunwind-exceptions --enable-__cxa_atexit --enable-bootstrap --enable-checking=release --enable-gnu-indirect-function --enable-gnu-unique-object --enable-initfini-array --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-shared --enable-threads=posix --mandir=/usr/share/man --with-arch_32=x86-64 --with-linker-hash-style=gnu --with-tune=generic - s1-2: --build=x86_64-redhat-linux --disable-libgcj --disable-libunwind-exceptions --enable-__cxa_atexit --enable-bootstrap --enable-checking=release --enable-gnu-indirect-function --enable-gnu-unique-object --enable-initfini-array --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-shared --enable-threads=posix --mandir=/usr/share/man --with-arch_32=x86-64 --with-linker-hash-style=gnu --with-tune=generic - hyperscale: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --enable-libmpx --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-multilib --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v - Hyperscal Cache: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --enable-libmpx --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-multilib --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v System Details- disk-linode: Python 2.6.6.- disk-provider: Python 2.7.5. SELinux: Enabled.- s1-2: Python 2.7.5. SELinux: Enabled.- hyperscale: Python 2.7.12.- Hyperscal Cache: Python 2.7.12.Disk Mount Options Details- disk-linode: data=ordered,errors=remount-ro,noatime,rw- disk-provider: attr2,inode64,noquota,relatime,rw,seclabel- s1-2: attr2,inode64,noquota,relatime,rw,seclabelDisk Details- hyperscale, Hyperscal Cache: none / data=ordered,relatime,rw

disk-linodedisk-providers1-2hyperscaleHyperscal CacheLogarithmic Result OverviewPhoronix Test SuiteApache BenchmarkSQLiteAIO-StressDbenchPostMarkUnpacking The Linux KernelIOzoneGzip Compression

disk-linode-checkaio-stress: Rand Writesqlite: 12,500 INSERTsdbench: 12 Clientsdbench: 48 Clientsdbench: 128 Clientsdbench: 1 Clientsiozone: 8GB Read Performanceiozone: 8GB Write Performancetiobench: 64MB Rand Read - 32 Threadstiobench: 64MB Rand Write - 32 Threadscompilebench: Compilecompilebench: Initial Createcompilebench: Read Compiled Treeunpack-linux: linux-2.6.32.tar.bz2postmark: Disk Transaction Performancecompress-gzip: 2GB File Compressionapache: Static Web Page Servingdisk-linodedisk-providers1-2hyperscaleHyperscal Cache519.1817.00258.38258.53241.00191.27436.54388.76106.0630.93443.7781.9145.5124.60147623.032345.36136.15599.92129.68251.59197.6424.75215.97350.22221.875.48211.2520.49264.0218.10146722.516907.06281.57234.58317.50521.98338.2152.17630.54235.01351.618.1414.13266917.7612765.91343.99125.62348.07394.74434.6489.11289.76255.10265.19225.5083.0815.00256917.326614.93355.30126.10364.67415.27451.2491.80327.64274.79280.08220.1393.1114.07256917.446324.68OpenBenchmarking.org

AIO-Stress

AIO-Stress is an a-synchronous I/O benchmark created by SuSE. Current this profile uses a 2048MB test file and a 64KB record size. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMB/s, More Is BetterAIO-Stress 0.21Random Writedisk-linodedisk-providers1-2hyperscaleHyperscal Cache110220330440550SE +/- 9.51, N = 6SE +/- 27.01, N = 6SE +/- 2.62, N = 3SE +/- 5.32, N = 3SE +/- 5.78, N = 3519.18136.15281.57343.99355.301. (CC) gcc options: -pthread -laio
OpenBenchmarking.orgMB/s, More Is BetterAIO-Stress 0.21Random Writedisk-linodedisk-providers1-2hyperscaleHyperscal Cache90180270360450Min: 492.07 / Avg: 519.18 / Max: 542.25Min: 26.49 / Avg: 136.15 / Max: 188.75Min: 276.67 / Avg: 281.57 / Max: 285.61Min: 333.39 / Avg: 343.99 / Max: 350.11Min: 348.44 / Avg: 355.3 / Max: 366.81. (CC) gcc options: -pthread -laio

SQLite

OpenBenchmarking.orgSeconds, Fewer Is BetterSQLite 3.7.312,500 INSERTsdisk-linodedisk-providers1-2hyperscaleHyperscal Cache130260390520650SE +/- 0.59, N = 6SE +/- 1.90, N = 3SE +/- 0.62, N = 3SE +/- 0.14, N = 3SE +/- 0.63, N = 317.00599.92234.58125.62126.10-lreadline -lcurses1. (CC) gcc options: -O2 -ldl -lpthread
OpenBenchmarking.orgSeconds, Fewer Is BetterSQLite 3.7.312,500 INSERTsdisk-linodedisk-providers1-2hyperscaleHyperscal Cache110220330440550Min: 15.73 / Avg: 17 / Max: 19.26Min: 596.72 / Avg: 599.92 / Max: 603.28Min: 233.92 / Avg: 234.58 / Max: 235.81Min: 125.48 / Avg: 125.62 / Max: 125.9Min: 125.48 / Avg: 126.1 / Max: 127.351. (CC) gcc options: -O2 -ldl -lpthread

Dbench

Dbench is a benchmark designed by the Samba project as a free alternative to netbench, but dbench contains only file-system calls for testing the disk performance. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMB/s, More Is BetterDbench 4.012 Clientsdisk-linodedisk-providers1-2hyperscaleHyperscal Cache80160240320400SE +/- 9.16, N = 6SE +/- 0.21, N = 3SE +/- 1.01, N = 3SE +/- 1.30, N = 3SE +/- 4.89, N = 3258.38129.68317.50348.07364.671. (CC) gcc options: -lpopt -O2
OpenBenchmarking.orgMB/s, More Is BetterDbench 4.012 Clientsdisk-linodedisk-providers1-2hyperscaleHyperscal Cache70140210280350Min: 213.93 / Avg: 258.38 / Max: 276.12Min: 129.27 / Avg: 129.68 / Max: 129.91Min: 316.08 / Avg: 317.5 / Max: 319.47Min: 345.5 / Avg: 348.07 / Max: 349.59Min: 354.88 / Avg: 364.67 / Max: 369.751. (CC) gcc options: -lpopt -O2

OpenBenchmarking.orgMB/s, More Is BetterDbench 4.048 Clientsdisk-linodedisk-providers1-2hyperscaleHyperscal Cache110220330440550SE +/- 1.67, N = 3SE +/- 1.89, N = 3SE +/- 3.01, N = 3SE +/- 1.58, N = 3SE +/- 1.68, N = 3258.53251.59521.98394.74415.271. (CC) gcc options: -lpopt -O2
OpenBenchmarking.orgMB/s, More Is BetterDbench 4.048 Clientsdisk-linodedisk-providers1-2hyperscaleHyperscal Cache90180270360450Min: 255.2 / Avg: 258.53 / Max: 260.28Min: 248.39 / Avg: 251.59 / Max: 254.94Min: 516.85 / Avg: 521.98 / Max: 527.26Min: 393.11 / Avg: 394.74 / Max: 397.89Min: 412.03 / Avg: 415.27 / Max: 417.651. (CC) gcc options: -lpopt -O2

OpenBenchmarking.orgMB/s, More Is BetterDbench 4.0128 Clientsdisk-linodedisk-providers1-2hyperscaleHyperscal Cache100200300400500SE +/- 3.23, N = 3SE +/- 1.44, N = 3SE +/- 1.99, N = 3SE +/- 3.40, N = 3SE +/- 2.20, N = 3241.00197.64338.21434.64451.241. (CC) gcc options: -lpopt -O2
OpenBenchmarking.orgMB/s, More Is BetterDbench 4.0128 Clientsdisk-linodedisk-providers1-2hyperscaleHyperscal Cache80160240320400Min: 234.57 / Avg: 241 / Max: 244.76Min: 194.77 / Avg: 197.64 / Max: 199.28Min: 334.68 / Avg: 338.21 / Max: 341.58Min: 428.07 / Avg: 434.64 / Max: 439.43Min: 448.5 / Avg: 451.24 / Max: 455.591. (CC) gcc options: -lpopt -O2

OpenBenchmarking.orgMB/s, More Is BetterDbench 4.01 Clientsdisk-linodedisk-providers1-2hyperscaleHyperscal Cache4080120160200SE +/- 2.31, N = 3SE +/- 0.02, N = 3SE +/- 0.05, N = 3SE +/- 0.05, N = 3SE +/- 0.19, N = 3191.2724.7552.1789.1191.801. (CC) gcc options: -lpopt -O2
OpenBenchmarking.orgMB/s, More Is BetterDbench 4.01 Clientsdisk-linodedisk-providers1-2hyperscaleHyperscal Cache4080120160200Min: 186.67 / Avg: 191.27 / Max: 193.96Min: 24.7 / Avg: 24.75 / Max: 24.78Min: 52.08 / Avg: 52.17 / Max: 52.26Min: 89.02 / Avg: 89.11 / Max: 89.2Min: 91.51 / Avg: 91.8 / Max: 92.161. (CC) gcc options: -lpopt -O2

IOzone

The IOzone benchmark tests the hard disk drive / file-system performance. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMB/s, More Is BetterIOzone 3.4058GB Read Performancedisk-linodedisk-providers1-2hyperscaleHyperscal Cache140280420560700SE +/- 48.37, N = 6SE +/- 5.42, N = 6SE +/- 5.16, N = 3SE +/- 9.99, N = 6SE +/- 23.36, N = 6436.54215.97630.54289.76327.641. (CC) gcc options: -O3
OpenBenchmarking.orgMB/s, More Is BetterIOzone 3.4058GB Read Performancedisk-linodedisk-providers1-2hyperscaleHyperscal Cache110220330440550Min: 279 / Avg: 436.54 / Max: 582.8Min: 205.22 / Avg: 215.97 / Max: 241.19Min: 620.41 / Avg: 630.54 / Max: 637.3Min: 267.55 / Avg: 289.76 / Max: 322.97Min: 270.54 / Avg: 327.64 / Max: 381.621. (CC) gcc options: -O3

OpenBenchmarking.orgMB/s, More Is BetterIOzone 3.4058GB Write Performancedisk-linodedisk-providers1-2hyperscaleHyperscal Cache80160240320400SE +/- 6.08, N = 3SE +/- 18.87, N = 6SE +/- 9.99, N = 6SE +/- 3.83, N = 6SE +/- 1.55, N = 3388.76350.22235.01255.10274.791. (CC) gcc options: -O3
OpenBenchmarking.orgMB/s, More Is BetterIOzone 3.4058GB Write Performancedisk-linodedisk-providers1-2hyperscaleHyperscal Cache70140210280350Min: 379.97 / Avg: 388.76 / Max: 400.44Min: 284.29 / Avg: 350.22 / Max: 396.31Min: 196.09 / Avg: 235.01 / Max: 265.84Min: 244.88 / Avg: 255.1 / Max: 272.79Min: 272.46 / Avg: 274.79 / Max: 277.721. (CC) gcc options: -O3

Threaded I/O Tester

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 0.3.364MB Random Read - 32 Threadsdisk-linodedisk-providers1-280160240320400SE +/- 4.96, N = 6SE +/- 3.45, N = 6SE +/- 5.50, N = 5106.06221.87351.61
OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 0.3.364MB Random Read - 32 Threadsdisk-linodedisk-providers1-260120180240300Min: 91.69 / Avg: 106.06 / Max: 121.55Min: 210.23 / Avg: 221.87 / Max: 230.57Min: 331.51 / Avg: 351.61 / Max: 362.43

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 0.3.364MB Random Write - 32 Threadsdisk-linodedisk-providers1-2714212835SE +/- 1.39, N = 6SE +/- 0.36, N = 6SE +/- 0.21, N = 630.935.488.14
OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 0.3.364MB Random Write - 32 Threadsdisk-linodedisk-providers1-2714212835Min: 27.91 / Avg: 30.93 / Max: 36.85Min: 3.96 / Avg: 5.48 / Max: 6.19Min: 7.43 / Avg: 8.14 / Max: 8.51

Compile Bench

Compilebench tries to age a filesystem by simulating some of the disk IO common in creating, compiling, patching, stating and reading kernel trees. It indirectly measures how well filesystems can maintain directory locality as the disk fills up and directories age. This current test is setup to use the makej mode with 10 initial directories Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMB/s, More Is BetterCompile Bench 0.6Test: Compiledisk-linodedisk-providerhyperscaleHyperscal Cache100200300400500SE +/- 2.95, N = 3SE +/- 3.02, N = 6SE +/- 5.12, N = 3SE +/- 3.65, N = 3443.77211.25265.19280.08
OpenBenchmarking.orgMB/s, More Is BetterCompile Bench 0.6Test: Compiledisk-linodedisk-providerhyperscaleHyperscal Cache80160240320400Min: 438.78 / Avg: 443.77 / Max: 449Min: 203.7 / Avg: 211.25 / Max: 224.4Min: 256.47 / Avg: 265.19 / Max: 274.21Min: 272.95 / Avg: 280.08 / Max: 285.04

OpenBenchmarking.orgMB/s, More Is BetterCompile Bench 0.6Test: Initial Createdisk-linodedisk-providerhyperscaleHyperscal Cache50100150200250SE +/- 0.51, N = 3SE +/- 0.66, N = 3SE +/- 7.08, N = 3SE +/- 3.12, N = 381.9120.49225.50220.13
OpenBenchmarking.orgMB/s, More Is BetterCompile Bench 0.6Test: Initial Createdisk-linodedisk-providerhyperscaleHyperscal Cache4080120160200Min: 80.94 / Avg: 81.91 / Max: 82.65Min: 19.64 / Avg: 20.49 / Max: 21.78Min: 211.4 / Avg: 225.5 / Max: 233.73Min: 216.92 / Avg: 220.13 / Max: 226.37

OpenBenchmarking.orgMB/s, More Is BetterCompile Bench 0.6Test: Read Compiled Treedisk-linodedisk-providerhyperscaleHyperscal Cache60120180240300SE +/- 0.41, N = 3SE +/- 1.80, N = 3SE +/- 1.77, N = 3SE +/- 3.60, N = 345.51264.0283.0893.11
OpenBenchmarking.orgMB/s, More Is BetterCompile Bench 0.6Test: Read Compiled Treedisk-linodedisk-providerhyperscaleHyperscal Cache50100150200250Min: 44.82 / Avg: 45.51 / Max: 46.25Min: 260.66 / Avg: 264.02 / Max: 266.8Min: 79.64 / Avg: 83.08 / Max: 85.52Min: 86.75 / Avg: 93.11 / Max: 99.23

Unpacking The Linux Kernel

OpenBenchmarking.orgSeconds, Fewer Is BetterUnpacking The Linux Kernellinux-2.6.32.tar.bz2disk-linodedisk-providers1-2hyperscaleHyperscal Cache612182430SE +/- 0.35, N = 4SE +/- 0.26, N = 4SE +/- 0.11, N = 4SE +/- 0.58, N = 8SE +/- 0.28, N = 824.6018.1014.1315.0014.07
OpenBenchmarking.orgSeconds, Fewer Is BetterUnpacking The Linux Kernellinux-2.6.32.tar.bz2disk-linodedisk-providers1-2hyperscaleHyperscal Cache612182430Min: 23.74 / Avg: 24.6 / Max: 25.45Min: 17.49 / Avg: 18.1 / Max: 18.73Min: 13.84 / Avg: 14.13 / Max: 14.38Min: 13.31 / Avg: 15 / Max: 18.29Min: 13.05 / Avg: 14.07 / Max: 15.57

PostMark

This is a test of NetApp's PostMark benchmark designed to simulate small-file testing similar to the tasks endured by web and mail servers. This test profile will set PostMark to perform 25,000 transactions with 500 files simultaneously with the file sizes ranging between 5 and 512 kilobytes. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgTPS, More Is BetterPostMark 1.51Disk Transaction Performancedisk-linodedisk-providers1-2hyperscaleHyperscal Cache6001200180024003000SE +/- 10.82, N = 3SE +/- 10.59, N = 3SE +/- 9.67, N = 3SE +/- 23.18, N = 3SE +/- 23.18, N = 3147614672669256925691. (CC) gcc options: -O3
OpenBenchmarking.orgTPS, More Is BetterPostMark 1.51Disk Transaction Performancedisk-linodedisk-providers1-2hyperscaleHyperscal Cache5001000150020002500Min: 1461 / Avg: 1476 / Max: 1497Min: 1453 / Avg: 1467.33 / Max: 1488Min: 2659 / Avg: 2668.67 / Max: 2688Min: 2525 / Avg: 2568.67 / Max: 2604Min: 2525 / Avg: 2568.67 / Max: 26041. (CC) gcc options: -O3

Gzip Compression

OpenBenchmarking.orgSeconds, Fewer Is BetterGzip Compression2GB File Compressiondisk-linodedisk-providers1-2hyperscaleHyperscal Cache612182430SE +/- 0.25, N = 3SE +/- 0.43, N = 6SE +/- 0.05, N = 3SE +/- 0.27, N = 5SE +/- 0.26, N = 623.0322.5117.7617.3217.44
OpenBenchmarking.orgSeconds, Fewer Is BetterGzip Compression2GB File Compressiondisk-linodedisk-providers1-2hyperscaleHyperscal Cache510152025Min: 22.57 / Avg: 23.03 / Max: 23.44Min: 21.09 / Avg: 22.51 / Max: 24.21Min: 17.66 / Avg: 17.76 / Max: 17.83Min: 16.5 / Avg: 17.32 / Max: 17.96Min: 16.95 / Avg: 17.44 / Max: 18.72

Apache Benchmark

This is a test of ab, which is the Apache benchmark program. This test profile measures how many requests per second a given system can sustain when carrying out 1,000,000 requests with 100 requests being carried out concurrently. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.4.7Static Web Page Servingdisk-linodedisk-providers1-2hyperscaleHyperscal Cache3K6K9K12K15KSE +/- 34.89, N = 3SE +/- 19.14, N = 3SE +/- 31.04, N = 3SE +/- 42.49, N = 3SE +/- 47.60, N = 32345.366907.0612765.916614.936324.681. (CC) gcc options: -shared -fPIC -O2 -pthread
OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.4.7Static Web Page Servingdisk-linodedisk-providers1-2hyperscaleHyperscal Cache2K4K6K8K10KMin: 2280.72 / Avg: 2345.36 / Max: 2400.44Min: 6869.19 / Avg: 6907.06 / Max: 6930.76Min: 12707.41 / Avg: 12765.91 / Max: 12813.17Min: 6543.07 / Avg: 6614.93 / Max: 6690.16Min: 6260.03 / Avg: 6324.68 / Max: 6417.521. (CC) gcc options: -shared -fPIC -O2 -pthread