Messages in this thread Patch in this message |  | | Date | Thu, 22 Nov 2001 22:22:21 +0100 | From | Patrick Mau <> | Subject | Question about balance_classzone in mm/page_alloc.c |
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Dear Kernel Developers,
this question could probably be answered bt Andrea Arcangeli ?
I added a prink to balance_classzone in 2.4.15-pre9. The message is not accurate because I moved it there, but anyway ...
--- linux-2.4.15-9/mm/page_alloc.c Thu Nov 22 19:53:46 2001 +++ work-2.4.15-9/mm/page_alloc.c Thu Nov 22 22:02:15 2001 @@ -251,6 +251,8 @@ local_pages = ¤t->local_pages; if (likely(__freed)) { + printk(KERN_DEBUG "zone_balance: %d pages freed\n", current->nr_local_pages); + /* pick from the last inserted so we're lifo */ entry = local_pages->next; do { I bootet with mem=64M and started KDE/Konqueror and did a bonnie++ run with 256M filesize. (I did not let it finish though).
The count of current->nr_local_pages from syslog shows always '1'. Maybe I don't understand the code, but balance_classzone is very often called (>20 times during one second according to syslog). I could append syslog output, but it's pretty boring.
My question is, whats the logic behind those nr_local_pages and the lifo while loop, when it's always called for one page ?
I had to kill bonnie++ and KDE because the box was absolutely trashing and did not respond to anything.
thanks for clarifying. Patrick - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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