diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | doc/jemalloc.xml.in | 12 | ||||
| -rw-r--r-- | include/jemalloc/internal/arena.h | 5 | ||||
| -rw-r--r-- | include/jemalloc/internal/ctl.h | 1 | ||||
| -rw-r--r-- | src/arena.c | 8 | ||||
| -rw-r--r-- | src/ctl.c | 11 | ||||
| -rw-r--r-- | src/stats.c | 11 |
7 files changed, 35 insertions, 19 deletions
@@ -38,7 +38,8 @@ found in the git revision history: "opt.prof_thread_active_init", "prof.thread_active_init", and "thread.prof.active" mallctls. - Add support for per arena application-specified chunk allocators, configured - via the "arena<i>.chunk.alloc" and "arena<i>.chunk.dalloc" mallctls. + via the "arena<i>.chunk.alloc", "arena<i>.chunk.dalloc", and + "arena.<i>.chunk.purge" mallctls. - Refactor huge allocation to be managed by arenas, so that arenas now function as general purpose independent allocators. This is important in the context of user-specified chunk allocators, aside from the scalability @@ -65,6 +66,9 @@ found in the git revision history: "stats.arenas.<i>.metadata.allocated" mallctls. - Add the "stats.resident" mallctl, which reports the upper limit of physically resident memory mapped by the allocator. + - Add per arena control over unused dirty page purging, via the + "arenas.lg_dirty_mult", "arena.<i>.lg_dirty_mult", and + "stats.arenas.<i>.lg_dirty_mult" mallctls. - Add the "prof.gdump" mallctl, which makes it possible to toggle the gdump feature on/off during program execution. - Add sdallocx(), which implements sized deallocation. The primary diff --git a/doc/jemalloc.xml.in b/doc/jemalloc.xml.in index adff6a4..d3f3616 100644 --- a/doc/jemalloc.xml.in +++ b/doc/jemalloc.xml.in @@ -1983,6 +1983,18 @@ malloc_conf = "xmalloc:true";]]></programlisting> </para></listitem> </varlistentry> + <varlistentry id="stats.arenas.i.lg_dirty_mult"> + <term> + <mallctl>stats.arenas.<i>.lg_dirty_mult</mallctl> + (<type>ssize_t</type>) + <literal>r-</literal> + </term> + <listitem><para>Minimum ratio (log base 2) of active to dirty pages. + See <link + linkend="opt.lg_dirty_mult"><mallctl>opt.lg_dirty_mult</mallctl></link> + for details.</para></listitem> + </varlistentry> + <varlistentry id="stats.arenas.i.nthreads"> <term> <mallctl>stats.arenas.<i>.nthreads</mallctl> diff --git a/include/jemalloc/internal/arena.h b/include/jemalloc/internal/arena.h index 56ee74a..dff99fb 100644 --- a/include/jemalloc/internal/arena.h +++ b/include/jemalloc/internal/arena.h @@ -470,8 +470,9 @@ dss_prec_t arena_dss_prec_get(arena_t *arena); bool arena_dss_prec_set(arena_t *arena, dss_prec_t dss_prec); ssize_t arena_lg_dirty_mult_default_get(void); bool arena_lg_dirty_mult_default_set(ssize_t lg_dirty_mult); -void arena_stats_merge(arena_t *arena, const char **dss, size_t *nactive, - size_t *ndirty, arena_stats_t *astats, malloc_bin_stats_t *bstats, +void arena_stats_merge(arena_t *arena, const char **dss, + ssize_t *lg_dirty_mult, size_t *nactive, size_t *ndirty, + arena_stats_t *astats, malloc_bin_stats_t *bstats, malloc_large_stats_t *lstats, malloc_huge_stats_t *hstats); arena_t *arena_new(unsigned ind); void arena_boot(void); diff --git a/include/jemalloc/internal/ctl.h b/include/jemalloc/internal/ctl.h index 7c2a4be..751c14b 100644 --- a/include/jemalloc/internal/ctl.h +++ b/include/jemalloc/internal/ctl.h @@ -34,6 +34,7 @@ struct ctl_arena_stats_s { bool initialized; unsigned nthreads; const char *dss; + ssize_t lg_dirty_mult; size_t pactive; size_t pdirty; arena_stats_t astats; diff --git a/src/arena.c b/src/arena.c index d38ffc6..bc13d20 100644 --- a/src/arena.c +++ b/src/arena.c @@ -2657,14 +2657,16 @@ arena_lg_dirty_mult_default_set(ssize_t lg_dirty_mult) } void -arena_stats_merge(arena_t *arena, const char **dss, size_t *nactive, - size_t *ndirty, arena_stats_t *astats, malloc_bin_stats_t *bstats, - malloc_large_stats_t *lstats, malloc_huge_stats_t *hstats) +arena_stats_merge(arena_t *arena, const char **dss, ssize_t *lg_dirty_mult, + size_t *nactive, size_t *ndirty, arena_stats_t *astats, + malloc_bin_stats_t *bstats, malloc_large_stats_t *lstats, + malloc_huge_stats_t *hstats) { unsigned i; malloc_mutex_lock(&arena->lock); *dss = dss_prec_names[arena->dss_prec]; + *lg_dirty_mult = arena->lg_dirty_mult; *nactive += arena->nactive; *ndirty += arena->ndirty; @@ -181,6 +181,7 @@ CTL_PROTO(stats_arenas_i_hchunks_j_curhchunks) INDEX_PROTO(stats_arenas_i_hchunks_j) CTL_PROTO(stats_arenas_i_nthreads) CTL_PROTO(stats_arenas_i_dss) +CTL_PROTO(stats_arenas_i_lg_dirty_mult) CTL_PROTO(stats_arenas_i_pactive) CTL_PROTO(stats_arenas_i_pdirty) CTL_PROTO(stats_arenas_i_mapped) @@ -443,6 +444,7 @@ static const ctl_indexed_node_t stats_arenas_i_hchunks_node[] = { static const ctl_named_node_t stats_arenas_i_node[] = { {NAME("nthreads"), CTL(stats_arenas_i_nthreads)}, {NAME("dss"), CTL(stats_arenas_i_dss)}, + {NAME("lg_dirty_mult"), CTL(stats_arenas_i_lg_dirty_mult)}, {NAME("pactive"), CTL(stats_arenas_i_pactive)}, {NAME("pdirty"), CTL(stats_arenas_i_pdirty)}, {NAME("mapped"), CTL(stats_arenas_i_mapped)}, @@ -524,6 +526,7 @@ ctl_arena_clear(ctl_arena_stats_t *astats) { astats->dss = dss_prec_names[dss_prec_limit]; + astats->lg_dirty_mult = -1; astats->pactive = 0; astats->pdirty = 0; if (config_stats) { @@ -545,9 +548,9 @@ ctl_arena_stats_amerge(ctl_arena_stats_t *cstats, arena_t *arena) { unsigned i; - arena_stats_merge(arena, &cstats->dss, &cstats->pactive, - &cstats->pdirty, &cstats->astats, cstats->bstats, cstats->lstats, - cstats->hstats); + arena_stats_merge(arena, &cstats->dss, &cstats->lg_dirty_mult, + &cstats->pactive, &cstats->pdirty, &cstats->astats, cstats->bstats, + cstats->lstats, cstats->hstats); for (i = 0; i < NBINS; i++) { cstats->allocated_small += cstats->bstats[i].curregs * @@ -2000,6 +2003,8 @@ CTL_RO_CGEN(config_stats, stats_resident, ctl_stats.resident, size_t) CTL_RO_CGEN(config_stats, stats_mapped, ctl_stats.mapped, size_t) CTL_RO_GEN(stats_arenas_i_dss, ctl_stats.arenas[mib[2]].dss, const char *) +CTL_RO_GEN(stats_arenas_i_lg_dirty_mult, ctl_stats.arenas[mib[2]].lg_dirty_mult, + ssize_t) CTL_RO_GEN(stats_arenas_i_nthreads, ctl_stats.arenas[mib[2]].nthreads, unsigned) CTL_RO_GEN(stats_arenas_i_pactive, ctl_stats.arenas[mib[2]].pactive, size_t) CTL_RO_GEN(stats_arenas_i_pdirty, ctl_stats.arenas[mib[2]].pdirty, size_t) diff --git a/src/stats.c b/src/stats.c index c5cea5e..6e1752e 100644 --- a/src/stats.c +++ b/src/stats.c @@ -6,15 +6,6 @@ xmallctl(n, v, &sz, NULL, 0); \ } while (0) -#define CTL_M1_GET(n, i, v, t) do { \ - size_t mib[6]; \ - size_t miblen = sizeof(mib) / sizeof(size_t); \ - size_t sz = sizeof(t); \ - xmallctlnametomib(n, mib, &miblen); \ - mib[1] = (i); \ - xmallctlbymib(mib, miblen, v, &sz, NULL, 0); \ -} while (0) - #define CTL_M2_GET(n, i, v, t) do { \ size_t mib[6]; \ size_t miblen = sizeof(mib) / sizeof(size_t); \ @@ -285,7 +276,7 @@ stats_arena_print(void (*write_cb)(void *, const char *), void *cbopaque, CTL_M2_GET("stats.arenas.0.dss", i, &dss, const char *); malloc_cprintf(write_cb, cbopaque, "dss allocation precedence: %s\n", dss); - CTL_M1_GET("arena.0.lg_dirty_mult", i, &lg_dirty_mult, ssize_t); + CTL_M2_GET("stats.arenas.0.lg_dirty_mult", i, &lg_dirty_mult, ssize_t); if (lg_dirty_mult >= 0) { malloc_cprintf(write_cb, cbopaque, "min active:dirty page ratio: %u:1\n", |