We are using phpThumb for image resize, crop and other supported operations in PhpThumb. We have configured PhpThumb to use ImageMagick(convert in turn). However, we are observing that convert command is taking too much time and hence it's degrading performance.We are observing that performance get's degraded with increase in image file-size and more number of concurrent requests on live/production server. We tried various options to improve performance, but none of these options are working.Following is ImageMagick configuration,
convert -list configure
Path: /usr/local/imagemagick-talos-6.9.1/lib/ImageMagick-6.9.1//config-Q16/configure.xml
CC gcc -std=gnu99 -std=gnu99
CFLAGS -I/usr/include/OpenEXR -I/usr/include/freetype2 -g -O2 -Wall -mtune=core2 -fexceptions -pthread -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_QUANTUM_DEPTH=16
CODER_PATH /usr/local/imagemagick-talos-6.9.1/lib/ImageMagick-6.9.1/modules-Q16/coders
CONFIGURE ./configure '--prefix=/usr/local/imagemagick-talos-6.9.1' '--disable-openmp' 'PKG_CONFIG_PATH=/usr/lib64/pkgconfig:/usr/share/pkgconfig'
CONFIGURE_PATH /usr/local/imagemagick-talos-6.9.1/etc/ImageMagick-6/
COPYRIGHT Copyright (C) 1999-2015 ImageMagick Studio LLC
CPPFLAGS -I/usr/local/imagemagick-talos-6.9.1/include/ImageMagick-6
CXX g++
CXXFLAGS -g -O2 -pthread
DEFS -DHAVE_CONFIG_H
DELEGATES bzlib djvu mpeg fftw fontconfig freetype jng jpeg lcms openexr pango png ps tiff webp x xml zlib
DISTCHECK_CONFIG_FLAGS --disable-deprecated --with-quantum-depth=16 --with-jemalloc=no --with-umem=no --with-autotrace=no --with-gslib=no --with-fontpath= --with-gvc=no --with-rsvg=no --with-wmf=no --with-perl=no
DOCUMENTATION_PATH /usr/local/imagemagick-talos-6.9.1/share/doc/ImageMagick-6
EXEC-PREFIX /usr/local/imagemagick-talos-6.9.1
EXECUTABLE_PATH /usr/local/imagemagick-talos-6.9.1/bin
FEATURES DPC Cipher
FILTER_PATH /usr/local/imagemagick-talos-6.9.1/lib/ImageMagick-6.9.1/modules-Q16/filters
HOST x86_64-unknown-linux-gnu
INCLUDE_PATH /usr/local/imagemagick-talos-6.9.1/include/ImageMagick-6
LDFLAGS -L/usr/local/imagemagick-talos-6.9.1/lib
LIB_VERSION 0x691
LIB_VERSION_NUMBER 6,9,1,4
LIBRARY_PATH /usr/local/imagemagick-talos-6.9.1/lib/ImageMagick-6.9.1
LIBS -llcms2 -ltiff -lfreetype -ljpeg -lpng12 -ldjvulibre -lfftw3 -lfontconfig -lwebp -lXext -lXt -lSM -lICE -lX11 -lbz2 -lIlmImf -lImath -lHalf -lIex -lIlmThread -pthread -lpangocairo-1.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lrt -lglib-2.0 -lxml2 -lz -lm
NAME ImageMagick
PCFLAGS -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_QUANTUM_DEPTH=16
PREFIX /usr/local/imagemagick-talos-6.9.1
QuantumDepth 16
RELEASE_DATE 2015-08-05
SHARE_PATH /usr/local/imagemagick-talos-6.9.1/share/ImageMagick-6
SHAREARCH_PATH /usr/local/imagemagick-talos-6.9.1/lib/ImageMagick-6.9.1/config-Q16
SVN_REVISION 18701
TARGET_CPU x86_64
TARGET_OS linux-gnu
TARGET_VENDOR unknown
VERSION 6.9.1
WEBSITE http://www.imagemagick.org
Path: [built-in]
FEATURES
NAME ImageMagick
QuantumDepth 16
Please guide us if we are missing anything to improve performance. We are running it on Apache server.We don't want to compromise image quality using QuatumDepth=8.
