Measure memory usage.

docs/life-of-a-request.md

@@ -76,8 +76,8 @@ If we look in [zproject/urls.py](https://github.com/zulip/zulip/blob/master/zpro
 `i18n_urls`. These urls show up in the address bar of the browser, and
 serve HTML.
 
-For example, the `/hello` page (preview [here](https://zulip.com/hello/))
-gets translated in Chinese at `zh-cn/hello/` (preview [here](https://zulip.com/zh-cn/hello/)).
+For example, the `/hello` page (preview)
+gets translated in Chinese at `zh-cn/hello/` (preview).
 
 Note the `zh-cn` prefix--that url pattern gets added by `i18n_patterns`.
 

docs/reading-list.md

@@ -24,7 +24,6 @@ Some titles have been shortened for organizational purposes.
 
 *Blog* - [Free Code Camp blog][]
 
-[Free Code Camp blog]: https://medium.freecodecamp.com
 
 *Blog* - [Idle Words talks transcripts][]
 
@@ -218,7 +217,6 @@ You may want to take a look first at our [Git and GitHub guide][].
 
 [Free Code Camp][]
 
-[Free Code Camp]: https://www.freecodecamp.com
 
 ## Massive Open Online Courses (MOOC) Platforms
 

tools/travis/backend

@@ -22,3 +22,7 @@ set -x
 python -W ignore tools/check-capitalization
 # Some test suites disabled in CI for being flaky
 #./tools/test-queue-worker-reload
+
+echo "check memory usage"
+wget https://raw.githubusercontent.com/pixelb/ps_mem/master/ps_mem.py
+sudo python ps_mem.py

tools/travis/production

@@ -3,3 +3,7 @@ set -e
 set -x
 
 sudo ./tools/travis/production-helper
+
+echo "check memory usage"
+wget https://raw.githubusercontent.com/pixelb/ps_mem/master/ps_mem.py
+sudo python ps_mem.py

tools/travis/production-helper

@@ -24,7 +24,7 @@ apt-mark hold initramfs-tools initramfs-tools-bin oracle-java8-installer oracle-
 # there are a lot of.  This is super ugly, but since Travis CI's
 # machines never update, we can avoid years of package upgrades (takes
 # ~60s to install) by doing this.
-apt-mark hold apport apt apt-transport-https apt-utils bash-completion bind9-host binutils binutils-doc bsdutils bzr cloud-guest-utils cloud-init coreutils cpio dnsutils docker-engine dosfstools dpkg dpkg-dev e2fslibs e2fsprogs firefox-locale-pt gcc-4.9-base git-core grub-common grub-pc grub-pc-bin grub2-common icedtea-6-plugin icedtea-7-plugin icedtea-netx icedtea-netx-common ifupdown imagemagick imagemagick-common initscripts irqbalance isc-dhcp-client isc-dhcp-common klibc-utils kpartx krb5-locales krb5-multidev libapt-inst1.5 libapt-pkg4.12 libarchive13 libbind9-90 libblkid1 libc-bin libcgmanager0 libcups2 libcupsfilters1 libcupsimage2 libcurl3-gnutls libcurl4-gnutls-dev libdns100 libdpkg-perl libdrm-dev libdrm-intel1 libdrm-nouveau2 libdrm-radeon1 libdrm2 libexpat1 libexpat1-dev libfreexl1 libgcc1 libgcrypt11 libgcrypt11-dev libgd3 libgl1-mesa-dev libgl1-mesa-dri libgl1-mesa-glx libglapi-mesa libgnutls-dev libgnutls-openssl27 libgnutls26 libgnutlsxx27 libgraphite2-3 libgssapi-krb5-2 libgssrpc4 libgstreamer-plugins-base1.0-0 libgtk2.0-0 libgtk2.0-bin libgtk2.0-common libgudev-1.0-0 libisc95 libisccc90 libisccfg90 libjasper-dev libjasper1 libk5crypto3 libkadm5clnt-mit9 libkadm5srv-mit9 libkdb5-7 libklibc libkrb5-3 libkrb5-dev libkrb5support0 liblcms2-2 liblcms2-dev liblwres90 liblxc1 libmagickcore-dev libmagickcore5 libmagickcore5-extra libmagickwand-dev libmagickwand5 libmount1 libmysqlclient-dev libmysqlclient18 libnettle4 libnl-3-200 libnl-genl-3-200 libnspr4 libnss3 libnss3-nssdb libnuma1 libpam-modules libpam-modules-bin libpam-runtime libpam-systemd libpam0g libpam0g-dev libpci3 libpcre3 libpcre3-dev libpcrecpp0 libpixman-1-0 libpixman-1-dev libpng12-0 libpng12-dev libpolkit-agent-1-0 libpolkit-backend-1-0 libpolkit-gobject-1-0 libpoppler44 libpython3.4 libpython3.4-dev libpython3.4-minimal libpython3.4-stdlib libsndfile1 libss2 libssl-dev libssl-doc libssl1.0.0 libsystemd-daemon0 libsystemd-login0 libtasn1-6 libtasn1-6-dev libtdb1 libtiff5 libtiff5-dev libtiffxx5 libuuid1 libxerces-c3.1 libxml2 libxml2-dev linux-libc-dev login lsb-base lshw lxc lxc-templates mesa-common-dev mount multiarch-support mysql-client mysql-client-5.5 mysql-client-core-5.5 mysql-common ntpdate openjdk-6-jre-lib openssh-client openssh-server openssh-sftp-server os-prober passwd pciutils perl perl-base perl-modules policykit-1 pollinate postgresql-9.1-postgis-scripts postgresql-9.2-postgis-scripts postgresql-client postgresql-client-9.1 postgresql-client-9.2 postgresql-client-9.4 postgresql-client-common postgresql-common python-apt python-apt-common python-bzrlib python-urllib3 python3-apport python3-apt python3-distupgrade python3-gdbm python3-lxc python3-problem-report python3-software-properties python3-update-manager python3.4 python3.4-dev python3.4-minimal rsync scons software-properties-common systemd-services sysv-rc sysvinit-utils tzdata tzdata-java ubuntu-release-upgrader-core uidmap unattended-upgrades unzip update-manager-core usbutils util-linux uuid-runtime accountsservice dbus libaccountsservice0 libdbus-1-3 tar
+apt-mark hold apport apt apt-transport-https apt-utils bash-completion bind9-host binutils binutils-doc bsdutils bzr cloud-guest-utils cloud-init coreutils cpio dnsutils dosfstools dpkg dpkg-dev e2fslibs e2fsprogs firefox-locale-pt gcc-4.9-base git-core grub-common grub-pc grub-pc-bin grub2-common icedtea-6-plugin icedtea-7-plugin icedtea-netx icedtea-netx-common ifupdown imagemagick imagemagick-common initscripts irqbalance isc-dhcp-client isc-dhcp-common klibc-utils kpartx krb5-locales krb5-multidev libapt-inst1.5 libapt-pkg4.12 libarchive13 libbind9-90 libblkid1 libc-bin libcgmanager0 libcups2 libcupsfilters1 libcupsimage2 libcurl3-gnutls libcurl4-gnutls-dev libdns100 libdpkg-perl libdrm-dev libdrm-intel1 libdrm-nouveau2 libdrm-radeon1 libdrm2 libexpat1 libexpat1-dev libfreexl1 libgcc1 libgcrypt11 libgcrypt11-dev libgd3 libgl1-mesa-dev libgl1-mesa-dri libgl1-mesa-glx libglapi-mesa libgnutls-dev libgnutls-openssl27 libgnutls26 libgnutlsxx27 libgraphite2-3 libgssapi-krb5-2 libgssrpc4 libgstreamer-plugins-base1.0-0 libgtk2.0-0 libgtk2.0-bin libgtk2.0-common libgudev-1.0-0 libisc95 libisccc90 libisccfg90 libjasper-dev libjasper1 libk5crypto3 libkadm5clnt-mit9 libkadm5srv-mit9 libkdb5-7 libklibc libkrb5-3 libkrb5-dev libkrb5support0 liblcms2-2 liblcms2-dev liblwres90 liblxc1 libmagickcore-dev libmagickcore5 libmagickcore5-extra libmagickwand-dev libmagickwand5 libmount1 libmysqlclient-dev libmysqlclient18 libnettle4 libnl-3-200 libnl-genl-3-200 libnspr4 libnss3 libnss3-nssdb libnuma1 libpam-modules libpam-modules-bin libpam-runtime libpam-systemd libpam0g libpam0g-dev libpci3 libpcre3 libpcre3-dev libpcrecpp0 libpixman-1-0 libpixman-1-dev libpng12-0 libpng12-dev libpolkit-agent-1-0 libpolkit-backend-1-0 libpolkit-gobject-1-0 libpoppler44 libpython3.4 libpython3.4-dev libpython3.4-minimal libpython3.4-stdlib libsndfile1 libss2 libssl-dev libssl-doc libssl1.0.0 libsystemd-daemon0 libsystemd-login0 libtasn1-6 libtasn1-6-dev libtdb1 libtiff5 libtiff5-dev libtiffxx5 libuuid1 libxerces-c3.1 libxml2 libxml2-dev linux-libc-dev login lsb-base lshw lxc lxc-templates mesa-common-dev mount multiarch-support mysql-client mysql-client-5.5 mysql-client-core-5.5 mysql-common ntpdate openjdk-6-jre-lib openssh-client openssh-server openssh-sftp-server os-prober passwd pciutils perl perl-base perl-modules policykit-1 pollinate postgresql-9.1-postgis-scripts postgresql-9.2-postgis-scripts postgresql-client postgresql-client-9.1 postgresql-client-9.2 postgresql-client-9.4 postgresql-client-common postgresql-common python-apt python-apt-common python-bzrlib python-urllib3 python3-apport python3-apt python3-distupgrade python3-gdbm python3-lxc python3-problem-report python3-software-properties python3-update-manager python3.4 python3.4-dev python3.4-minimal rsync scons software-properties-common systemd-services sysv-rc sysvinit-utils tzdata tzdata-java ubuntu-release-upgrader-core uidmap unattended-upgrades unzip update-manager-core usbutils util-linux uuid-runtime accountsservice dbus libaccountsservice0 libdbus-1-3 tar
 
 apt-get dist-upgrade -y $APT_OPTIONS