From 55b1ee255718fb3bd8edc0406700febc4a682fe3 Mon Sep 17 00:00:00 2001
From: jmorganca <jmorganca@gmail.com>
Date: Sat, 20 Dec 2025 18:01:07 -0800
Subject: [PATCH] wip

---
 server/download.go       |  5 ++---
 server/sparse_common.go  |  8 --------
 server/sparse_windows.go | 17 -----------------
 3 files changed, 2 insertions(+), 28 deletions(-)
 delete mode 100644 server/sparse_common.go
 delete mode 100644 server/sparse_windows.go

diff --git a/server/download.go b/server/download.go
index 30acb314d..25e6fc697 100644
--- a/server/download.go
+++ b/server/download.go
@@ -15,7 +15,6 @@ import (
 	"net/url"
 	"os"
 	"path/filepath"
-	"runtime"
 	"strconv"
 	"strings"
 	"sync"
@@ -109,8 +108,8 @@ var (
 
 	// downloadConcurrency limits concurrent part downloads.
 	// Higher = faster on fast connections. Memory stays ~64KB regardless.
-	// Default: 2 * GOMAXPROCS (scales with CPU cores). Override with OLLAMA_DOWNLOAD_CONCURRENCY.
-	downloadConcurrency = getEnvInt("OLLAMA_DOWNLOAD_CONCURRENCY", 2*runtime.GOMAXPROCS(0))
+	// Default: 64. Override with OLLAMA_DOWNLOAD_CONCURRENCY.
+	downloadConcurrency = getEnvInt("OLLAMA_DOWNLOAD_CONCURRENCY", 64)
 )
 
 func getEnvInt(key string, defaultVal int) int {
diff --git a/server/sparse_common.go b/server/sparse_common.go
deleted file mode 100644
index c88b2da0b..000000000
--- a/server/sparse_common.go
+++ /dev/null
@@ -1,8 +0,0 @@
-//go:build !windows
-
-package server
-
-import "os"
-
-func setSparse(*os.File) {
-}
diff --git a/server/sparse_windows.go b/server/sparse_windows.go
deleted file mode 100644
index f21cbbda7..000000000
--- a/server/sparse_windows.go
+++ /dev/null
@@ -1,17 +0,0 @@
-package server
-
-import (
-	"os"
-
-	"golang.org/x/sys/windows"
-)
-
-func setSparse(file *os.File) {
-	// exFat (and other FS types) don't support sparse files, so ignore errors
-	windows.DeviceIoControl( //nolint:errcheck
-		windows.Handle(file.Fd()), windows.FSCTL_SET_SPARSE,
-		nil, 0,
-		nil, 0,
-		nil, nil,
-	)
-}