Lucid: Build performance improvements

Bug #832352 reported by Tim Gardner on 2011-08-23
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Undecided
Unassigned
Lucid
Undecided
Tim Gardner
Oneiric
Undecided
Unassigned

Bug Description

The debian/rules makefile is not well organized and does not support parallel compilation. Given the number of times that this kernel will be built over the next 3 years, it makes sense to try and improve on developer build times. These improvements will likely have no effect on archive build times.

Tim Gardner (timg-tpi) on 2011-08-23
Changed in linux (Ubuntu Oneiric):
status: New → Fix Committed
Changed in linux (Ubuntu Lucid):
assignee: nobody → Tim Gardner (timg-tpi)
status: New → In Progress
Herton R. Krzesinski (herton) wrote :

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-lucid' to 'verification-done-lucid'.

If verification is not done by one week from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-lucid
Tim Gardner (timg-tpi) on 2011-10-13
tags: added: verification-done-lucid
removed: verification-needed-lucid
Launchpad Janitor (janitor) wrote :
Download full text (5.2 KiB)

This bug was fixed in the package linux - 2.6.32-35.78

---------------
linux (2.6.32-35.78) lucid-proposed; urgency=low

  [Herton R. Krzesinski]

  * Release Tracking Bug
    - LP: #871899

  [ Andrew Dickinson ]

  * SAUCE: sched: Prevent divide by zero when cpu_power is 0
    - LP: #614853

  [ Stefan Bader ]

  * [Config] Force perf to use libiberty for demangling
    - LP: #783660

  [ Tim Gardner ]

  * [Config] Simplify binary-udebs dependencies
    - LP: #832352
  * [Config] kernel preparation cannot be parallelized
    - LP: #832352
  * [Config] Linearize module/abi checks
    - LP: #832352
  * [Config] Linearize and simplify tree preparation rules
    - LP: #832352
  * [Config] Build kernel image in parallel with modules
    - LP: #832352
  * [Config] Set concurrency for kmake invocations
    - LP: #832352
  * [Config] Improve install-arch-headers speed
    - LP: #832352
  * [Config] Fix binary-perarch dependencies
    - LP: #832352
  * [Config] Removed stamp-flavours target
    - LP: #832352
  * [Config] Serialize binary indep targets
    - LP: #832352
  * [Config] Use build stamp directly
    - LP: #832352
  * [Config] Restore prepare-% target
    - LP: #832352
  * [Config] Fix binary-% build target
  * [Config] Fix install-headers target
    - LP: #832352
  * SAUCE: igb: Protect stats update
    - LP: #829566
  * SAUCE: rtl8192se spams log
    - LP: #859702

  [ Upstream Kernel Changes ]

  * Add mount option to check uid of device being mounted = expect uid,
    CVE-2011-1833
    - LP: #732628
    - CVE-2011-1833
  * crypto: Move md5_transform to lib/md5.c
    - LP: #827462
  * net: Compute protocol sequence numbers and fragment IDs using MD5.
    - LP: #827462
  * ALSA: timer - Fix Oops at closing slave timer
    - LP: #827462
  * ALSA: snd-usb-caiaq: Fix keymap for RigKontrol3
    - LP: #827462
  * powerpc: Fix device tree claim code
    - LP: #827462
  * powerpc: pseries: Fix kexec on machines with more than 4TB of RAM
    - LP: #827462
  * Linux 2.6.32.45+drm33.19
    - LP: #827462
  * ipv6: make fragment identifications less predictable, CVE-2011-2699
    - LP: #827685
    - CVE-2011-2699
  * tunnels: fix netns vs proto registration ordering
    - LP: #823296
  * Fix broken backport for IPv6 tunnels in 2.6.32-longterm kernels.
  * USB: xhci: fix OS want to own HC
    - LP: #837669
  * USB: assign instead of equal in usbtmc.c
    - LP: #837669
  * USB: usb-storage: unusual_devs entry for ARM V2M motherboard.
    - LP: #837669
  * USB: Serial: Added device ID for Qualcomm Modem in Sagemcom's HiLo3G
    - LP: #837669
  * atm: br2864: sent packets truncated in VC routed mode
    - LP: #837669
  * hwmon: (ibmaem) add missing kfree
    - LP: #837669
  * ALSA: snd-usb-caiaq: Correct offset fields of outbound iso_frame_desc
    - LP: #837669
  * mm: fix wrong vmap address calculations with odd NR_CPUS values
    - LP: #837669
  * perf tools: do not look at ./config for configuration
    - LP: #837669
  * fs/partitions/efi.c: corrupted GUID partition tables can cause kernel
    oops
    - LP: #837669
  * befs: Validate length of long symbolic links.
    - LP: #837669
  * ALSA: snd_usb_caiaq: track submitted output urbs
    - LP: #8...

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Changed in linux (Ubuntu Lucid):
status: In Progress → Fix Released
Tim Gardner (timg-tpi) wrote :

These build performance changes have propagated to all releases.

Changed in linux (Ubuntu):
status: Fix Committed → Fix Released
Changed in linux (Ubuntu Oneiric):
status: Fix Committed → Fix Released
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