+tcp_min_tso_segs - INTEGER
+       Minimal number of segments per TSO frame.
+       Since linux-3.12,

Во народ обрадуется, читать про 3.12 ядро в версии 3.8 :D  
---------------------------------------------------------------
Работают посаны:

22 января (он же вариант от 25 декабря 2010)



diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 7d7a36d..a8c7ad0 100644 (file)
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -83,8 +83,8 @@ static void __init find_early_table_space(struct map_range *mr, int nr_range)
#ifdef CONFIG_X86_32
        /* for fixmap */
        tables += roundup(__end_of_fixed_addresses * sizeof(pte_t), PAGE_SIZE);
-#endif
        good_end = max_pfn_mapped << PAGE_SHIFT;
+#endif

        base = memblock_find_in_range(start, good_end, tables, PAGE_SIZE);
        if (!base)

25 января (он же вариант с версии 2.6.37)



diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index a8c7ad0..7d7a36d 100644 (file)
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -83,8 +83,8 @@ static void __init find_early_table_space(struct map_range *mr, int nr_range)
#ifdef CONFIG_X86_32
        /* for fixmap */
        tables += roundup(__end_of_fixed_addresses * sizeof(pte_t), PAGE_SIZE);
-       good_end = max_pfn_mapped << PAGE_SHIFT;
#endif
+       good_end = max_pfn_mapped << PAGE_SHIFT;

        base = memblock_find_in_range(start, good_end, tables, PAGE_SIZE);
        if (!base)

diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 307a811..6f746b2 100644 (file)
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -109,7 +109,7 @@ MODULE_PARM_DESC(scan, "sync, async or none");
  * in practice, the maximum number of LUNs suppored by any device
  * is about 16k.
  */
-static unsigned int max_scsi_report_luns = 511;
+static unsigned int max_scsi_report_luns = 1023;

module_param_named(max_report_luns, max_scsi_report_luns, uint, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(max_report_luns,

---
Во полезный патчик https://oss.oracle.com/git/?p=linux-uek3-3.8.git;a=commitdiff;h=af22a6bceb6a39

Patch has no impact for high speed flows, where having large TSO packets
makes sense to reach line rate.

For other flows, this helps better packet scheduling and ACK clocking.

This patch increases performance of TCP flows in lossy environments.