[PATCH v4 00/10] makedumpfile: parallel processing

Zhou Wenjian zhouwj-fnst at cn.fujitsu.com
Wed Aug 5 23:08:01 PDT 2015

	1.remove the option --num-buffers
	2.remove the strange code

	1.add strange code to optimize performance

	1.change the logic to optimize performance

This patch set implements parallel processing by means of multiple threads.
With this patch set, it is available to use multiple threads to read
and compress pages. This parallel process will save time.
This feature only supports creating dumpfile in kdump-compressed format from
vmcore in kdump-compressed format or elf format. Currently, sadump and
 xen kdump are not supported.

Qiao Nuohan (10):
  Add readpage_kdump_compressed_parallel
  Add mappage_elf_parallel
  Add readpage_elf_parallel
  Add read_pfn_parallel
  Add function to initial bitmap for parallel use
  Add filter_data_buffer_parallel
  Add write_kdump_pages_parallel to allow parallel process
  Initial and free data used for parallel process
  Make makedumpfile available to read and compress pages parallelly
  Add usage and manual about multiple threads process

 Makefile       |    2 +
 erase_info.c   |   29 +-
 erase_info.h   |    2 +
 makedumpfile.8 |   13 +
 makedumpfile.c | 1093 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 makedumpfile.h |   80 +++++
 print_info.c   |   10 +
 7 files changed, 1219 insertions(+), 10 deletions(-)


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