git/list[1] front-page[2] threads[3] people[4] search[5] about
 

Re: [RFC/PATCH v4 1/3] add high resolution timer function to debug performance issues

From
RHRichard Hansen <rhansen@bbn.com>
Date
May 21, 2014, 22:14 UTC
Message-ID
<537D2528.3090806@bbn.com>
In-Reply-To
<537BA8D1.1090503@gmail.com>
On 2014-05-20 15:11, Karsten Blees wrote:
> Add a getnanotime() function that returns nanoseconds since 01/01/1970 as
> unsigned 64-bit integer (i.e. overflows in july 2554).

Must it be relative to epoch? If it was relative to system boot (like the NetBSD kernel's nanouptime() function), then you wouldn't have to worry about clock adjustments messing with performance stats and you might have more options for implementing getnanotime() on various platforms.

-Richard
Previous: Karsten BleesNext: Richard Hansen
Message 4 of 17 in “add high resolution timer function to debug performance issues”
  1. 1/3 add high resolution timer function to debug performance issuesKarsten Blees, May 20, 2014
  2. Noel GrandinMay 21, 2014
  3. Karsten BleesMay 21, 2014
  4. Richard HansenMay 21, 2014
  5. Richard HansenMay 21, 2014
  6. Karsten BleesMay 22, 2014
  7. 2/3 add trace_performance facility to debug performance issuesKarsten Blees, May 20, 2014
  8. Jeff KingMay 21, 2014
  9. Karsten BleesMay 21, 2014
  10. Jeff KingMay 21, 2014
  11. 3/3 add command performance tracing to debug scripted commandsKarsten Blees, May 20, 2014
  12. Jeff KingMay 21, 2014
  13. Junio C HamanoMay 21, 2014
  14. Karsten BleesMay 22, 2014
  15. Jeff KingMay 22, 2014
  16. Karsten BleesMay 23, 2014
  17. Jeff KingMay 23, 2014

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.